Which fluid to use for Toyota Diffs,Transfer Case and Manual transmissions

[@bronxtaskforce01]

You're absolutely the best in educating the public on how to maintain our vehicles. With that we who are subscribed to your channel, WE THANK YOU!👍

[@scottschmucker5622]

Excellent video. You are amazingly easy to learn from. Thank you!

[@danramalingum2200]

Agreed

[@anthonyvandenheever9770]

​@@scottschmucker56229😊

[@signman1987]

Amen!

[@m.b8257]

I like that reference , Toyota’s more worried about making reliable cars than naming their oils, it’s so true.

[@chiaralistica]

That's why I will only buy Toyota trucks.

[@jonathansanford2786]

*used to care more about making reliable trucks. They gave in to pressure and spent all the budget on the 25 Tacoma on the interior and took shortcuts on the drivetrain to compensate. They just release a PSE about the 25 Tacoma transmissions being shit.

[@1xicano]

I am sure glad i took the time to watch this Video. I put the wrong oil in my 91 Toyota pickup manual Transmission and had to drain it and put the correct GL-4 gear oil. Better to change and be safe than regretting later down the road. Thank you!

[@codyrobert12]

A very strong facet of these videos is the vividness of the thumbnails. Not flashy or trendy, just very pertinent and relevant and appealing to the eye.

[@peterlaw6824]

Side note, when changing differential fluid make sure you can remove the refill plug before removing the drain plug.

[@thetechlibrarian]

Very true always crack that fill plug first

[@leandrolaporta2196]

Very true, that should be for all fluids including manual transmission ones, first remove the refill one, it you can then take the drain, better play it safe, thank you!

[@MoosSmokes]

What about synthetic?

[@gregl4244]

He said that

[@Firebird400]

Ahhh pack it with grease 😂

[@rtap8170]

Nice to finally get a clear answer to the the fluids and especially transfer case. I ended up using Red Line MT-LV recommended for toyota/lexus LF 75W GL-4 because i refused to pay the stupid amount for the toyota fluid.

[@FloridaSunMitochondria]

Feedback on the redline MT-LV which they state is equiv to the Toyota LF? Any issues? Delays? Would love to hear feedback on this. Thanks.

[@gerryjimenez6125]

AMD another awesome video I have a 21 Taco TRD OR 4x4, at 30k replace diff, and transfer case fluids I think the manual recommends a propellor shaft adjustment or something like that, Do you have any videos on maintenance on 4x4 taco’s? I didn’t see any in your channel.

[@brawlman]

@@FloridaSunMitochondria I've used it on 06 Honda and buttery smooth shifts. No regrets!

[@janpur1417]

Use RED LINE gear oil. They make GL-4 and is the BEST oil money can buy. I have 5 Toyotas 4 are 4x4 and 1 is a Corolla/Sprinter/Prizm Manual trans at 300K miles. Red-line oil made the shifting in the Corolla as equivalent to my 21 Taco manual. All diffs and transfer cases I use Valvoline 75W-80. Use Aluminum crush washers for Gear and Transfer case. Metal washer for diffs (but aluminum works for diffs as well). Excellent video!

[@Toofine4444]

Can I use Redline MT-LV 70W/75W GL-4, even though it says “for manual transmissions”?

[@rickh6595]

All the research and development to change my transfer case and left unsure until you say it. I trust that you say 75 90 every 30k I'm done researching. Thank you brother

[@bluefj-wc3vz]

This was an excellent point you brought up on GL ratings! No one usually sells GL-4 and if you don't know, you are buying GL-5 without a doubt.

[@ahmadkamali8547]

True i agree with that

[@glasser2819]

ignorants believe bigger numbers are better, such as with brake fluid Dot3, 4 ...

[@yunus_aros]

I put the Amsoil 75w-90 API-GL4 Manual Transmission & Transaxle Gear Lube into the manual transmission of my old Toyota Urban Cruiser. I loved the Easy Pack too. Amsoil got the API-GL4 in their products lineup.

[@KrazyKramer]

I needed this video 6 months ago when I was super confused which oil to use in my 2016 manual transmission Corolla. Even the dealer was clueless, telling me to use any 75w-90. No mention of any GLs. I'm sure these lube techs everywhere you go just put whatever bulk gear oil they have in no matter what kind of car you have. I do everything to my own car That I possibly can. You just can't trust many people to do things right. Thanks for clearing this up.

[@bakial2030]

Hello, I have a 2018 Model Auris 1.33 Gasoline vehicle with 6-Speed Manual Transmission. The price of 2.4 (3) liter Toyota 75W90 is $200 in my country. Will there be a problem if I use Liqui Moly MTF5200 75W80, which provides GL-4 and costs $60 for 3 liters? Have you changed the transmission oil of your vehicle? What brand of product did you use? Thanks in advance.

[@randyduncan795]

I wonder how many people put Mobil 1 75w90 GL-5 in their Toyota manuals! I use Redline MT90 75w90 and it is clearly marked GL-4 and specifically states that it is safe for brass synchros. It is designed for manual transmissions and it gave a very noticeable improvement in shifter feel vs the original Dino oil. Thank you for another great presentation.

[@soldiersvejk2053]

I remember grabbing two 75W-90 GL-5 gearoil on sale for $2 per quart before my first change of manual transmission oil, but I am very glad that I went for the Red Line MT-90. Quite expensive, but works very well on my little Yaris.

[@paulkolbe-hurley7194]

Should work on my 98 starlet so

[@buckaroobonsi555]

I have tried just about every Gear Lube and MT fluid that can be purchased in the USA or Europe on my 2003 Toyota Camry with manual transmission. Redline has be the best by far. I like to put in 1 quart of Red Line MTL and the rest MT-90. I live in Michigan and it gives slightly better could weather performance when it drops down super cold like -25. MT-90 works great too or MT-85 which I am not sure Red Line makes any more. Tested all of them with Used Oil Analysis and based on shift fill cold and hot and how long the cold shift performance lasted. If you want the best cold and hot shifting with the least amount of wear nothing worked better for me than Red Line "MT" line of GL-4 lubricants. Their power steering fluid is the best I have used as well. I can also recommend their CV-2 grease.

[@coloradoboo1071]

For my 2014 Tundra 4x4 which tows our 7,000 camper, I barely put 5,000 miles a year so I just change out the diffs and xfer case every 2 years. I ordered from Blau Parts and they sent the German made Ravenhol oil, exactly what I needed! (And their diff oil bottles have those plastic extensions that make using them super easy...no pumping anything!!)

[@karlkrzok4280]

Absolutely great point! I have driven manual transmission cars for decades and have heard the same thing when going to buy new fluid, so now I just buy the correct GL-4 fluid online. I have used Redline for years with good results.

[@themessenger4011]

Thank you Car care nut. Thank you. I was so confused about what to put in my transfer case until I watch your video. Thank you and may the Lord bless and keep you.

[@albertbraun7322]

Hi,Thank´s for this very accurate and informative video.I have been an Toyota mechanic for more than 30 years and believe me.,I have learned one more fact today.Great job.

[@mynameIan]

Could have done with this video about 6 years ago when I did all the fluids on the FJ Cruiser TT that I had at the time. Best vehicle EVER.

[@raycollington4310]

Great public service broadcasting here. In UK I see auto stores and lube websites often recommend the incorrect product. I think half of the vehicles on the road have the wrong specification lubes. The product marketing industry don't help IMHO and help cause ambiguity in some cases. Love you channel and content. I've ordered my first Toyota thanks to you. I hope I like it when it comes!

[@srandyt2]

I am so glad I watched this. I am working through changing fluids on my 05 Tacoma manual. Got sidelined by needing front suspension repairs I found in the process. Through you, indeed "the Lord did keep me". Thank you. RT

[@andrewthomas7654]

Master Technician or rather Professor of Mechanics.....love the videos.....learned so much from the Professor!!!!!

[@michaelturner9673]

"...the world will not end..." Love it. My favorite Toyota care channel. Great videos, great guy.

[@HiwasseeRiver]

Many thanks for this video - The last time I bought fluid I thought I had lost my mind, the stuff in the stores was soooo misleading.

[@Andres-300]

I love you for going in depth about GL4 vs GL5. It took me so much research to learn and understand the differences!!

[@wiscowalleye7954]

I use Redline MT90 in my 2016 Tacoma manual transmission. It works great!! Changed it twice in 180,000 miles. Shifts like the day I bought it.

[@onenikkione]

every 30k miles, not 90k

[@wiscowalleye7954]

@@onenikkione probably true but since it’s a manual transmission I’m not as worried about it compared to a say an automatic. There’s a lot less going on in there. And I take it easy on it.

[@mr.horse1801]

Im about to do it at 90k. Not sure if the original owner did it but this post makes me feel more confident about it.

[@muziklvr7776]

@@wiscowalleye7954 It's recommended to change the fluid every 30K NOT for the fluid, but for metal material that naturally flakes off with every shift. This metal floats around the case and eventually works its way into all of the bearings, reducing their lifespan. Changing the fluid dumps the metal particles floating around the trans. Be sure to change it more often to reduce bearing wear.

[@wiscowalleye7954]

@@muziklvr7776 good to know, I’ve checked the fluid carefully after each change for this reason along with a magnetic drain plug. Zero metal.

[@johndesaavedra1040]

Thanks AMD! I was able to shop for gear oils for my 2017 Tacoma as a better-informed consumer after watching your video. Now, whenever I approach maintenance on one of my Toyotas, I watch your video first to get your take.

[@bravogoldeagle8907]

AMD. Changed the Transfer Case oil in my 2019 Toyota Tundra TRD 4X4 with Valvoline 75w-90 5,000 miles ago. After seeing a few things online, I started to freak out that my transfer case was gonna blow! Thank you for important info, I’ll use this fluid for the life of my truck. 😰 Thank you for sharing it’s okay!

[@masoncomeaux4105]

Get that valvoline crap out of there!. Valvoline is trash. Spend the extra couple dollars and put some amsoil in it. Your tundra will thank you!

[@bravogoldeagle8907]

Odd, I was reading Amsoil blows trannys and transfer cases.

[@bubba4072]

How is it holding up? I'm thinking about using that in my 2016.

[@bravogoldeagle8907]

Valvoline is performing excellent and will complete the 60K drain/fill in February 2025. Would never bad mouth any brands but the way people fear sell like the brand noted above, I would never touch it. Sticking with Valvoline.

[@cyberburnzy]

Thanks for the great video. With my 84 FJ60 w/ manual transmission, the FSM says GL-4. I ended up buying Redline GL-4 75W80 to put in both my transfer and transmission. I couldn't find any GL-4 locally so I bought it on Amazon. I hope it works out because it is pretty pricey. I found quite a few people recommending it on forums for their late 80's and 90's trucks with manual transmissions.

[@joebrown9621]

Redline MT LV GL-4 70W-75 works well while being 26% to 40% cheaper than comparable Amsoil and is just as good if not better.. I'm glad you took the time to educate the masses and i hope some parts personnel see this and stop up selling the wrong oil to customers including some dealerships 🙄

[@robme3660]

It's what's recommended because of gas mileage and versatility. I'd personally go thicker for better parts protection unless you live where it drops below -20/-40. (75W90 or 80W90 gl-4.)

[@masoncomeaux4105]

Red line is good yes… but nothing compares to amsoil.

[@mike9119]

Great video on the GL-4 vs GL-5 I'm a Amsoil dealer even today I see other "brand" name oils out there that are higher in price then Amsoil name. For $20 a year you can get it at wholesale price and save or like you no cost at all get wholesale pricing and good intransitives on the volume. Best thing I like about Amsoil they use more detergents that help it last longer while in normal use. Thanks for the explanation on the 2 versions. Silly how Toyota at times haven't updated their internals like this. Lets not talk about the 3G issues they screwed up on in a major way.

[@megahurts2]

Weird, KZbin is glitching out on me so forgive a potential double post. But yes, it does appear your customer accidentally purchased the wrong oil. The correct one for the Manual Transmission in the 3rd gen Tacoma has the product code: MTGPK-EA This specifically is GL-4 compatible (had to re-read my label's as I almost had a heart attack lol) Also silly question, when replacing the fluids in the Diffs/T-Case/Transmission do you 100% of the time replace the washers (there's a few different kinds)? T-Case: 90430A0003 x2 Front Diff: 1215710010 x1 & 9043024003 x1 Rear Diff: 1215710010 x2 Just curious if you happen to of run across any failures or leaks due to people not replacing these during the oil changes. And of all the people to ask, you would be the one :). Thanks for the awesome video!

[@TheCarCareNut]

Hi! I always replace the gaskets and recommend you do so as they're very inexpensive. The crush washer ones for the diffs have a higher possibility of leaking if reused but not super common. but the transfer case ones have a much less possibility of leaking.

[@Dencoan]

You are a life saver. I have been torn if I spend the money hunting down the Toyota oils for my 30k service on my 4Runner. But it should be far easier to find a multi weight gl5 at about any store and probably save me a few hundred dollars

[@BOSS-xy8op]

This was so informative. I have a 2010 Toyota Camry with the 2.5L four cylinder with the 6 speed Manual transmission. I wanted to change my fluid but I didn't know the difference between GL4 and GL5 now I know. Thanks!!

[@DericCribbs]

Jealous of your car, they are hard to find. Went to a salvage yard for one a couple times, everytime it's an auto being misrepresented as manual.

[@wholeNwon]

Initially I had some difficulty finding 90wGL-5 for the differential on my '98 LS400. So I called Lexus of N. America and asked whether multiviscosity oil was acceptable. The person who answered didn't know but said she would call back. The reply was that only single viscosity was to be used. I checked the web site of one of the major makers of multiviscosity oils and they, too, said that theirs should not be used when single viscosity was required. Fortunately Amazon sold Miller's 90w GL-5 at a reasonable price. In retrospect I almost wish I hadn't changed the oil even at 140K. The old fluid looked almost like new and there was no debris on the magnet. But now I don't have to worry about it. At 23.5 yo, still my daily driver and happy that it is!

[@stevecanny1583]

You saved the transaxle on my 2006 Scion xB from a long slow death! I went with Redline MT-90 which folks seem to like and is clearly identified as for manual transmissions (the MT bit in the name :). They mention the GL-4 bit proudly in the spec and I'm happy to pay a couple dollars more for lube from folks who know what I need :) Thanks so much!

[@PaulPitcher-z7n]

My 2005 Tacoma says it takes GL5 right in the owners manual..and I am the original owner….i replaced the manual transmission oil with GL5 and your video has me worried now…..but the book in the glove box says it’s supposed to take GL5 …..but I watch a lot of your videos and I trust your opinion so much I’m gonna switch to GL4 if I can find some….

[@rook2759]

I used the Amsoil Severe Gear on front and rear diff. Redline now lists their Redline MT-LV 75W GL4 as a suitable replacement for the Toyota liquid gold. At $21 a quart I went with that in the TC. My 2017 Taco seems to get in and out of 4H and 4L a little smoother these days. I am happy with it so far.

[@inshallah4280]

I have a 16 rolla and I’m gonna go ahead and buy the 70w 75w gl4 redline because every dealer near me will not sell in less than 100 gallons

[@bendover8433]

Safe to use the MT-LV in an auto transfer case?

[@garybaldwin1061]

Didnt he say use gl 5 for transfer case.

[@karmevincent]

I love watching your video and get informed , I have an 207 FJ changed the differential fluid at 30.000 , when it was around 55 ,56 .thousand miles it started making little noise , I toured was the bering I and up change the bering , i touted maybe because is sitting I don't use to much , still today I have 86.000 miles , my question I know in one video you talked about it the FJ , Toyota never really any of those problem , and I am sure most be expensive job to do . BTW I don't abuse the truck or going off road , I actually I baby

[@carlosestrada298]

The Amsoil gear oil picking was a mistake from your client. I have a manual transmission and i use the oil that Amsoil recommended, wich is the transaxel GL4. Amsoil is worth it's price, and you could disagree with me as i disagree with you on this one thing. Other than that i really like the way you do your videos. ✌

[@leandrolaporta2196]

I just saw this, you just drop a bomb on the subject, I had to pause the video and run to the garage to see if I f#$ed up or not with my manual transmission fluid Thank God I did not, GL4 75w80 geeez I didn't know about GL5 attacking soft metals of the synchros wow, every video of yours are truly priceless on information, I look everywhere about this and there is NO clear info, finally I decide to play it safe, I paid a lot for that 75w80 because the cheap one was 75w90 but i remember reading that 90 was not for this gear box, so I guess I was lucky hehe. Thank you!

[@jameswag8473]

This Video was incredibly helpful. You had me running out to my garage to see if I had put the right gear oil in two years ago. The Red Line MT Transmission fluid that I used is GL 4 thank goodness.

[@leandrolaporta2196]

Hahahah I did the same thing! I pause the video and run out to the garage looking for the damn bottle, I read GL4 and I guess I started breathing again hehe

[@gkbkansas]

I'm glad I don't have to buy ridiculous priced transfer case fluid for my Tacoma, thanks for the tip. I don't have a manual transmission so I just changed my transmission fluid with Toyota brand fluid when it was due. Not a hard job just a lot of steps to assure you have the correct level.

[@KendrasEdge757]

JUST did my 2021 4Runner TRD ORP front/rear diff and transfer case yesterday at 41,862 miles. I’ll do 30k from here on out. Used Valvoline Full Synthetic Synpower 75W90 gear oil GL5 for all three cases. My rear had typical metal shavings on drain plug, less on the front as expected, and the transfer case fluid looked still newish and the front was a little worse and the rear being the worse. None were burnt or overly used, but wanted it done. Next month I’ll be taking it to Toyota for the transmission filter/fluid and all of my maintenance will be done for awhile. Appreciate the videos and all the help sir! God bless~

[@futtt_buckerson]

Paying Toyota £136 to do this on my Avensis next week. Will be glad to know it’s changed. Nobody talks about gearbox oil changes here in the UK and we’re all manual drivers for the most part!

[@andrewward4246]

im going to use all amsoil 75w90 in all my diffs and transfer case next weekend thanks! seems to be one of the cheapest in Canada

[@christiancml]

@The Car Care Nut Thank you again for this valuable information. I think the next video you could show us how to service the driveshafts by greasing them at the zerks, etc. Thank you!

[@inferno1770]

Great video I'm glad we are on the same page about front diff rear diff and transfer case . Yes amzoil is more spendy but reliable.

[@billsdogsinaz]

First let me say I love your channel. I upvote many of your videos and am subscribed as well. Here I have to disagree with you. I have been using Amsoil for over 20 years. I used to own cabs and limos in Chicago and ran Amsoil in all of them. Currently I am running Amsoil in several personal vehicles as well as a lawn tractor. If it needs lubricants I use Amsoil. Just a couple of examples. I bought a 2015 Honda Pilot, new. They recommend changing Transmission Fluid every 35k or so. At 35k I replaced the original with Amsoil Trans fluid. Recently at about 125k I changed it for the second time. The fluid looked as new as the day I put it in. On my 2015 Prius V, I should have changed it sooner than the 5 years and 80k miles and not waited for the dealer to tell me to change it. The fluid was very dirty. I replaced it with Amsoil WS ATF after flushing it with twice with 8 quarts of Toyota WS. Example 2: I had a Chevy Astro Van I bought used with 120k on it. They had changed the transmission at 87k. The first thing I did was put Amsoil in the engine, Trans and Diff. When I sold the van a few years later with over 300k It was still running strong. I changed the Trans and diff fluid after 100k, the oil and filter every 25k. I urge you to read up on Amsoil and their extended drain intervals. It is cheaper for people who drive a lot and cheap insurance for people who drive a little. They have the best base stocks and additive packages in the business. Caveat. I am a dealer but I'm more a believer. For people who don't do their own MX and Uber or cab drivers those extended drain intervals are money in the bank. Keep up the good work and I look forward to more videos. I just bought the 2022 Avalon Nightshade and followed your video and changed out the courtesy lights to LED.

[@boostedmaniac]

You’re exactly right sir. I had a manual Mitsu Eclipse GSX and it required GL4 in the trans. And yes it’s hard to find GL4. I ended up using BG Syncroshift for a while which worked ok. But later tried Redline (can’t remember the type) for manual transmissions which was made to use where a GL4 was called. This was an improvement over the BG. What you put in the manual gearbox definitely makes a difference on how it shifts.

[@Trex6767]

When I was younger I had a forester and the weight was the same diff. I had some left over diff fluid which had lsd addictive. Once it got cold out the manual transmission was difficult to shift in the morning. Went to Subaru and got their dedicated manual transmission fluid and the shifting was much better. My advice and lesson I learned was to just suck it up and go to the dealer and buy their manual transmission specific fluid.

[@eric9249]

You used Redline MT-85 or MT-90, both are GL4's and perform great except when its very cold out. The Eclipse GSX will be notchy until n the fluid warms up. I use the aforementioned in summer months & use thinner GL4's in winter months. 301k miles on my GST gearbox!!!

[@boostedmaniac]

@@eric9249 my car was always garage parked and I live in a warm climate so I didn’t really notice much diff between warm and cold.

[@buckaroobonsi555]

I tried BG as well it was one of the 12-20 GL4's I tried before being able to say with out a doubt Red Line "MT" line is the best I have used in a Toyota manual transmission!

[@lincolnsampaiobr]

you are the best explaining this, on my humble opinion on the engineer department of Toyota only works, on all other work engineer marketing and someone from the sales dept of oil companies great video!

[@hokie9910]

AMD, I buy Amsoil severe gear for 13/qt delivered to my front door, and those easy paks are so nice. Mobil 1 is not that much cheaper and the Amsoil is a true synthetic. If you guys are getting other fluids for a lot cheaper please let me know where as I have 2 teenagers and need to save money on all the fluids I buy! Lol

[@origin20000]

Thank you! I almost went buying the wrong fluid (GL-4/GL-5 dual compatible) for my manual transmission. I'm so glad that I bumped into this video before I changed the fluid.

[@FFWrench]

Please note that Amsoil SVG 75w90 in the data sheet specifies: “Recommended for use in differentials, manual transmissions and other gear applications requiring any of the following specifications: API GL-5, MT-1, MIL-PRF-2105E, Dana SHAES 234 (Formerly Eaton PS-037), Mack GO-J, or other GL-5 based specifications from vehicle manufacturers, including Ford*, GM* and Chrysler*. Can also be used in axles where an API GL-4 lubricant is recommended” The bottle is lacking the full information from the data sheet. It does not list transmissions where GL4 is required just axles. Thank you for posting this video. It is important to go over the specs of each product.

[@waitingforparts57]

Been watching your channel for a couple of years, but didn't have a Toyota to diy. Now have a 2020 RAV4. Going to do the drivetrain fluids now So glad I to work on it due to your videos. May God bless you and yours . Thank you

[@donswier]

Your channel is always current, up-to-date, relevant, and positive. No outdated hypotheses from yesteryear, or click-bait, or threats to quit your channel. We have an 07 V6 4runner because of your advice, and it's been exactly as you predicted. Because we can fully count on the 4runner, our other car is allowed to be the opposite: a used, RWD, range-extended EV, an i3REx. The i3 has been shockingly reliable for modern German, and costs only $5 energy to cover 200 miles (4runner would be $40 here in Seattle area). We like how you advocate proven cars and engines, but you're still open to new tech.

[@victorq1046]

Very informative thank you! I have a 09 Scion TC with 38k original miles. I recently serviced the manual transmission with Valvoline Full Synthetic 75W-90. According to the Scion manual the factory recommends GL-4 or GL-5 gear oil. What is your opinion on the usage of a GL-5 gear oil with the E350 Toyota transmission? Before watching this video I wanted to try the Amsoil 75W-90 however now I'm not so sure.

[@NEXT433]

The owner's manual for my '09 Tacoma states..."Manual transmission, Recommended gear oil type, Gear oil API GL-4 or GL-5." I used GL-5 when I changed the transmission fluid, 7 years and 6,500 miles ago. It has become a second vehicle and is driven only occasionally now. Do your admonissions about GL-5 apply or was it different in '09? Should I change to GL-4? I see a few others in the comments that have the same GL-4 or GL-5 recommendations in their owner's manuals.

[@ppeterson9359]

Really appreciate the video. I spent most of the day trying to locate the appropriate fluid for my just installed rebuilt R150 in my ‘96 Tacoma. The rebuilder says conv or syn 80w/90 GL5. The manual says 75w/90 GL4 or GL5. After watching your video I decided to track down some 75w/90 GL4.

[@cam81366]

Thanks for the great info. Getting ready to replace all of my fluids before winter. This video helped lot.

[@Shepherd4R]

I meant to get MT-90 but saw Redline 75w90 was cheaper on amazon. Looks the same, same colour scheme on the bottle, just different wording on it. I watched this video and realised I bought GL5! Thanks!

[@Starman-yt8lj]

Thank you again AMD! You continue to help me immensely in properly maintaining our Toyotas.

[@masoncomeaux4105]

This man is definitely a life saver!.. getting ready to do transfer case and front/rear diffs on my 17 tundra. Love amsoil products I’ll be using 75w-90 severe gear in them. I figured it wouldn’t hurt anything.. if anything it will probably extend the life of them.

[@davidbrytowski4477]

This man is correct. GL5 is not the best oil for any manual transmission with copper or brass. GL5 contains sulfur. There are stabilizers in it but they'll break down. The rear differential has hypoid gears. It needs the high pressure additives of GL5. They used lead back in the day.

[@eljefeslash]

Thank you for this explanation! I changed out all of the fluids on my '98 4Runner over a year ago, thinking I was good, used 75W-90 GL-5 for the manual trans, both differentials, and the t-case (the owners manual said GL-4 or GL-5 for the manual tranny, so I thought I was solid with that oil). Then I noticed some folks on Facebook strongly recommending MT-90/GL-4 for manual trans (and mentioning the harm that GL-5 could do to the syncros). I just did a drain and refill with the Redline MT-90 GL-4. I called Redline and confirmed this, and they also said it wouldn't be a bad idea to also put MT-90 in the transfer case (since the oil in the tranny and t-case could potentially cross over if there was ever a leak). So I changed out the t-case to MT-90 also. Hopefully I'm good to go now. I don't want to replace that transmission!

[@RotoRCol]

same said in my owner's prado manual 5vz to use GL4 or GL5

[@Tacosauce22]

Thank you for all the amazing content you put out for us Toyota lovers I recently purchased a 22 Tacoma Trd off-road with a manual transmission since new I’ve only put 5000 miles on it. so far I change the oil recently myself because I refuse to follow a 10,000 mile interval which Toyota recommends next oil change is on the dealer 🙂 this is a great video because I want to make sure I keep all my fluids up-to-date and thank you for the specific information to follow on all your videos may God bless and everything that you do 🙏🏼

[@TG-ss4he]

Thanks Amd for explaining the differences with the GL5 75/85 to 75/90 it helped clear up a lot !

[@jasonwong35]

Great information and topic to put out there! For those who have Subaru manual transmissions, service manual says to use GL-5, but make sure it is NS (NON-SLIP) and or without LS additives. Correct me if I'm wrong on that. Thanks!

[@TheCarCareNut]

Follow the recommendation from your owners manual or service manual as different transmissions will have different requirements

[@randylee2549]

In a 2003 c59 manual corolla, it says GL4 or GL5, Pentosin did a test, then old issue with GL5 is no longer an issue, GL5 is buffered and not dangerous sin e all GL5 is MT1 rated.

[@Fe_lix]

@@randylee2549 I agree, the info on this video is outdated, the aggressive additive in the GL5 has been long replaced and this MT1 rating is the important classification here. And actually I just checked, my 1991 Toyota Hiace, that has the same drivetrain (and gearbox) than a 1st gen Tacoma, the owner manual recommends "SAE 75W90 API GL-4 or GL-5" for the manual transmission. So pretty sure that the Tacoma, that was released in 1995, the owner manual doesn't recommend GL3.

[@coloradoboo1071]

Much needed video, THANKS! Update on my squeaky brakes...turned out my brake job on the front was fine, the rear brakes on the Suzuki now need replacing....so another DIY job in my TODO list! Also, have you noticed car part prices are going through the roof? I used to be able to buy rotors/pads for around $150 now some are closer to $300! Crazy

[@TheCarCareNut]

Hi my brother! Yep prices are joining car prices and will get worse before it gets better

[@vladd5291]

Thanks, awesome as usual! For transfer case fluid, Redline now makes one called MT-LV, which has 75w weight and works as a replacement for Toyota transfer fluid

[@peterschmitt415]

it is listed as GL4....not a problem?

[@timsul3092]

Thanks for the video. I had my manual transmission and diff oil changed recently and the shop accidentally put GL-5 in the transmission. I drove the car home and and after some research, caught the mistake. I only drove it about 8 miles home and will drive it back to the shop for the GL-4 replacement for a total of about 16 miles. It stayed in the tranny a little over a week but like I said I did not drive the car with the GL-5 in the transmission except as noted. I don't think this will be a problem or damage anything but I wanted to make sure. Thanks again.

[@5shrek5]

Thank you AMD. I was worried about the fluid I’ve been using but now I feel more at ease. It was hard to find gl4 in the Chicago area. I’ve been using redline mt-lv gl4 and it’s been great so far.

[@TheCarCareNut]

Redline is very good

[@stevesicinski5170]

Ravenol gear lube comes in the oem weights. I used Redline 75W85 price point was reasonable. Ravenol is made in Germany. I've been using it in my transfer case on my 16 Tacoma with no issues. Again price point through Blauparts in Wisconsin very reasonable. Hope this helps

[@danieldesimone3268]

So on the transfer case on 2022 tacoma automatic 4x4 SR it’s ok to use 75-90 GL -5. Same as rear or front differential just will get slightly lower gas mileage. You do a great job thank you for your hard work

[@agostinodibella9939]

Thanks AMD for the video. Without knowing, people would think that GL5 would be backward compatible with GL4 and 3. I didn’t know that GL5 would harm a manual transmission. I have been using Mobil One 75W-90 GL5 in our transfer cases and differentials.

[@bubbalandbeau9872]

Being a DYI mechanic requires a lot of training! I’m so glad I watched this video! Why? Because I was getting ready to change my 2012 Toyota Tacoma manual transmission fluid and… I have the wrong oil! It’s got the GL5 additive, But it also says it works in “ all non-synchronized manual transmissions where GL-4 is specified …” 😳🙈😱 I think I saw the GL4 and just bought it. “NON-SYNCHRONIZED “ ! Huh? I’m not sure because it’s been so long since I bought the fluid and obviously I didn’t do enough KZbin tutorials to make an informed purchase. But now I’ve found you Car Nut and my searching is partially over. Now where is my receipt? 🤔 … and where did you find GL-4???? 🤷🏼‍♂️🙈

[@SolicitedCrib4]

On my European Toyota Yaris 1st Gen, the manual states for 75w90 and says that GL-4 or GL-5 can be used. So Motul on their website recommends their GL-4/GL-5 75w90 and they clearly say that it is compatible also with Synchromesh gearboxes. So, that is what I changed to the last time I changed my oil and no problems so far. I guess, if it was dangerous for the trans, Toyota would not include both specifications on their manual 🤷🏻

[@Enorkyeoj]

You just saved me so much time and money, i was so confused. Thank you for breaking things down barney style. Keep the content flowing!!

[@supersymun]

Solid advice! Bought fluid early in the year in anticipation of working on it…. Glad I grabbed the gl5 for my 4Runner.

[@supersymun]

Redline… 75w90

[@OscarSegundo]

Aw man im doing a transmission flush asap! 😂 I just realized i put in GL-5. Its been 10k miles 😬 Thank you for the information 🙏

[@davederryberry7474]

Walmart brand transmission lubes are available in GL-4 and GL-5, both full synthetic and non-synthetic.

[@johngraham4965]

glad i listened to this guy__ was going to screw up my manual transmission on my Mustang Cobra.....

[@joshm9003]

Great video. I hate the smell of gear oil but it's easy to change. Redline gear oil is my choice they cater a lot to older and new Toyotas. I would add changing the crush washer and making sure to use the correct one as the transmission is aluminum and differentials are steel. I have spares but have never had a leak.

[@SpicyMcGeezaks]

I ended up putting redline mtlv(gl-4) in my transfer case because I read it was the closest to Toyotas 75W. I then saw elsewhere the 2008 actually is spec’d a gl-5 75-90. How concerned should I be, if at all? Do you think the GL-4 will potentially cause damage in my transfer?

[@joshm9003]

@MrRedHotChiliMan i would first check online or if you have a service manual for your truck to verify it is actually GL5. For manual transmissions in the older trucks they run the same oil in the transfer case. I imagine in case a seal leaks there'd be no contamination between the transmission and transfer case as well.

[@SpicyMcGeezaks]

@@joshm9003 thanks for your reply. I was more referring to if there would be more wear and tear due to being less additive in the fluid. I’m not real knowledgeable about how much goes on in the transfer during daily use in 2wd. My truck is an auto if it makes any difference.

[@joshm9003]

@MrRedHotChiliMan they have specific formulas for a reason i assume it would make a difference but you can call Redline as well to verify. If it does call for gl5 you can always change it out. We all get burned every now and then on buying the wrong things. For me I'd rather have the correct stuff then cause any damage.

[@Papparratzi]

Absolutely cleared up what I suspected about using the same oil in the front and rear differential and transfer case. The cherry on top was the info about GL 5 on transmissions.

[@aliangdudu]

Awesome video AMD. Maybe it is an exception, but according the owner's manual, my 1996 T100 uses either GL4 or GL5 gear oil for manual transmission. I speculate that some other old Toyota trucks can use both GL4 and GL5 oil as well.

[@aircoolscott]

My 01 Tacoma manual says this as well, which is why I changed it using Redline GL5. Now I’m confused. Do I need to switch it out for GL4 even though the owners manual says it’s okay?

[@insaneXsk8r]

What nooooooo what confusion

[@timothyrobles8777]

I just purchased a 2006 Pontiac Vibe with a 5 speed manual. I better check what my Owners manual says. Good video.

[@nat73360]

Thank you for the info. Maybe someday you will address cold start rattle, especially on the 2.5 L

[@Janky2912]

Very helpful, I just done mine, wish I watched this first, that transfer case oil is $135 now, I bit the bullet, was more concerned with that electronic shift solenoid, than again the front diff has one too and I put regular gear oil in, didn't know it was about fuel mileage, was really concerned about damaging seals and bearing surfaces by using the wrong formula., gl5 it is next time for all 3

[@johnworthington5758]

First, Ahmed, THANK YOU for your honest and generous help to us DIY weekend mechanics and our working families. You and Mrs. Car Care are really making a BIG difference in my family. My Question: I have 224K on a 2004 Corolla Matrix manual 5 speed. There has been GL-5 fluid in the trans for 16 years (changed 2 times from original now). GL-5 was recommended by Haynes shop manual. Gears 2 & 3 are starting to make rattle sounds. Toyota says $6,300 to replace - but I'm not taking that path yet. Can changing to GL-4 fluid help delay the inevitable? The car drives VERY smoothly otherwise. I also just DIY'd new OEM battery, valve cover gasket and denso radiator. Plenty of rust on the rocker panels (New England). May I have your best suggestion please? Thank you, John And to you and your family: Num6:24, The LORD bless you and keep you; The LORD make His face shine upon you, And be gracious to you; The LORD lift up His countenance upon you, And give you peace!

[@TheCarCareNut]

Hi John! Honestly at this point likely the damage is already done. No point in changing the fluid. I would shop around for a used transmission and have a local shop replace it. Labor isn’t super high to replace it and a used part would be the route I’d go if you want to save this car and the rest of it is in good shape

[@johnworthington5758]

Thank you, Ahmed! I’ll start looking for a used one as you suggested

[@SpicyMcGeezaks]

@@johnworthington5758 digging up the past here.. I was wondering if you ever bothered with getting the new trans or just swapping out the fluid? I was curious because I had a manual car that would grind going into 3rd gear. I’m not sure what the previous own used in the trans, but after changing the fluid out (using Bg syncroshift gl-4, the gearbox hasn’t grinded/popped out of 3rd gear since. That was 3 years ago. I only wish I had seen your comment earlier so I could say yes, try changing the fluid first.

[@stonewalled9696]

This video is a gem. Good today and good in 20 years.

[@LChow-xq3xm]

Thank you for making things clear on this confusing subject!!!

[@johdirt7843]

Got some Mobil Delvac 75W90 for my axles and did go a bit over the top with Redline MT-LV 70W/75W GL-4 for the transfer case.

[@forwardplans8168]

The Amsoil 100% synthetic is great in cold weather, from 40 DegF down to -40. Other "full" synthetics are too thick and take a few minutes to warm up.

[@jimn.9990]

The Safety Data Sheet of the Amsoil 100% synthetic 75W-90 Severe Gear Oil reveals it has a relatively-high Flash Point (FP) of 420.8° F and a relatively-low Pour Point (PP) of -45.4° F. Looking up the Safety Data Sheet (SDS) of Redline Gear Oil, I see that they confusingly grouped all 6 of their gear oils (ranging from 75W-85 up to 80W-140) in the same individual SDS listing, which one would reasonably expect the stats of each one individually would be different. In any event, SDS reveals the line of Redline Gear Oils to have a FP of 329° F (91° F lower than Amsoil) and a PP of -40° F (Amsoil is an additional 5.4° F lower in the exteme cold temperatures). Another individual SDS of Redline 75W-90 Gear Oil reveals it has a FP of 298 °F, with yet another SDS of Redline 75W-90 Gear Oil showing a FP of 266 °F, but neither SDS of this 75W-90 Gear Oil displayed a Pour Point! What? The moment I changed both of my differentials in my Subaru Tribeca with the Amsoil Severe Gear Oil (after draining the factory-filled gear oil at 30k+ miles), I noticed immediate performance by realizing that the power delivered to the four wheels was less restricted. If you are wondering why a Subaru owner like me is following the TCCN Channel, my other vehicle is a Toyota Camry XLE Hybrid. Besides, Ahmed is a fantastic college-professor and he is a friend of mine. His shop performed periodic maintenance on my Camry over the past year. I am an extremely-satisfied customer of his shop in terms of the quality of workmanship, more than reasonable pricing and relatively-low wait times! When an oil company advertises their line of products as 100% synthetic, they only contain a combination of PAOs (PolyAlphaOlefins, a Class IV Synthetic) and Esters (Class IV Synthetic) without any hydrocracked petroleum oil (Class III Synthetic), according to Rafe, a former Lubrication Engineer at Mobil, who has a series of KZbin Videos under the channel, "Lubrication Explained." Of course the 100% synthetic Amsoil products contain top-shelve ingredients, including proprietary additives, in addition to the PAOs and Esters.

[@robme3660]

I've been running 80W-90 gl-4 in my 2021 Corolla 6spd. I think that the transmission prefers it. It drops below 32 once every 5 years for 2 hours in the Tampa Bay area of Florida. I could care less that it's dino oil. I change mine every 25k miles.

[@alexdesamsonow822]

I’m addicted to this guys videos and excellent down to earth videos! Thank you AMD. God Bless you and yours. Do you do bass guitar instructional videos too? Lol 🎸

[@nostrilnick]

Awesome video, thank you. Please do one on prop/drive shaft grease (assuming you haven't already!).

[@ahmadkamali8547]

Yessss it is important

[@MrCROBosanceros]

Yes, I read all about the importance of using manual transmission and transaxle gear oil with a proper API rating. I just pulled out the owner's manual of my 2006 Corolla and 2010 Yaris, just to double-check. This is what I found in the owner's manual: Oil type: Gear oil API GL-4 or GL-5. Recommended oil viscosity: SAE 75W-90. Oil capacity: 5-speed 1.9Liters or 2.0 qt. So according to Toyota, using manual transmission oil API GL-5 is recommended to use on some of their models of vehicles. Despite that, next time before I do an oil change, I will look for API GL-4 oil. No more Motul GEAR 300.

[@Aviduduskar]

My 2011 Fortuner 3.0L D4D 4x4 MT has the exact same transmission oil (2.2 Litres) spec. It states SAE (75W90, 80W and 80W90), I wonder how much of the stated GL-4 vs GL-5 issue affects these vehicles..

[@MrCROBosanceros]

@@Aviduduskar My 2006 Toyota Corolla with manual transmission is over seventeen years old with 200 000 kilometres (almost 125 000 Miles) on the odometer. I have been using either Castrol Synthetic Manual Transmission Fluid GL-5 or Motul Manual Transmission Fluid GL-5. I usually replace fluid every two years and so far, I didn't notice any problem with my transmission. I'm not an expert but just in case, next time I will use fluid with GL-4 specification. It is harder to find Manual Transmission Fluid with only GL-4 specification. I couldn't find any fluid with GL-3 specifications. Red Line has a big assortment of gear fluids and Amsoil offers Manual Transmission & Transaxle Gear Lube 75W-90 with GL-4 specification.

[@dc5723]

On the rear diff I used Redline 75W-85 GL5.

[@tundramanq]

I looked this GL thing up back when I owned my 94 "Taco" , learned of the syncro eating and ended up buying Amsoil GL4 for the transmission and GL5 for transfer case and diffs. Back then they were about the same high price at a gas station that was the only handy dealer for Amsoil products. Way back, you needed to look for hypoid gear oil for the sliding mesh differential gears. I had a Navy buddy change his Datsun's tranny oil and he put in 90W in the winter in below zero upstate New York. He couldn't even get it into gear until it got warmed up in neutral. We fixed that.

[@RastaJediX]

I love you, man. I bought some Redline MT-90 (GL-4, 75W-90) for my '15 Corolla 6MT and am trying to prepare myself for the change!

[@RoyFJ65]

The synchro is made of soft metal like brass or bronze and sulfur etches them. This is the reason many manual transmissions specially the ones from Getrag and ZF specified ATF for the manual transmission. For my differential and transfer case I use Respol Navigator synthetic GL4 75W-90 and so far, has worked out well. Informative video as always.

[@gregorymalchuk272]

And yet we've been dumping sulfurized gear oil in manual transmissions for decades. And synchros pre-date boron ester based ATF. I've heard tribologists claim that the sulfur doesn't become corrosive to yellow metals until above 100 Celsius. Then there is ZDDP additized engine oil/hydraulic fluid,/Ford Type F/CVT fluid which some transmissions calll for.

[@pursueadventure]

Great info. Thank you! I can't tell you how many hours I've spent researching the "gold" oil for the transfer case!

[@rutgershouses]

Same here I’m debating on redline 70W 75W MT-LV GL-4 Gear Oil (1 Quart) - Red Line 50604 or the RAVENOL J1C1003 SAE 75W Manual Transmission Fluid - MTF-3 Full Synthetic what’s your opinion??

[@sergiykud]

i d love to see a video on transfer case/diff fluid changes(2015 Rav 4 specificaly :P). great video! as always!!