DOC HARLEY: OIL COOLERS

[@bobmohr4952]

Doc Harley is the kind of tech we all wish we had at our favorite repair shop. Love to listen to this guy.

[@neil426]

Doc, your voice was made for radio!

[@januarioqueiroz3122]

Agree!!!

[@jimfisher3161]

I thought the same thing

[@SebSar-ef4zj]

Like a sports commentator ? !

[@reddog907]

Ha ha , someone told me I had a face for radio.

[@SebSar-ef4zj]

We won't have any problem if Doc Harley is Moto GP Commentator . Like Mr Murray Walker was for Fomula 1.

[@allenhawker3911]

I don’t even have a motorcycle but love listening to Doc Harley and learning about them! So interesting!!!!

[@johnardis6027]

Engineering Ph.D.? It's great to listen to someone who delivers a structured narrative and who avoids jargon. Respect!

[@LowCountryHarleyDavidson]

Thank you for your kind words…..Doc

[@arthurleino]

I bought a Harley Davidson oil cooler for my 1983 FXWG in 87 before Squadron moved to Japan. Left it on when I got transferred to the Philippines. Still have it installed!

[@mrkapusta9935]

Doc i've watched a lot of your videos and YOU BY FAR as the most knowledgable som bitch i've ever seen on HD bikes. Thorough, great radio voice, and informative. Keep up the great work and ride on!

[@lobo176]

I live in Arizona and none of us run oil coolers. I bought the Harley oil cooler with thermostat, always leaked around the adapter. I took it off and have never used it since. We ride all year even above 110 deg. HD does testing on new bikes out here in the middle of the summer. If they needed them they would come from the factory with them. Just ride and don’t worry about it. There are a lot of high mileage Harley’s out here in AZ without coolers and no problems.

[@Regal1999]

Lobo 176 same thing here in Las Vegas

[@garybaldwin1061]

While your at it take the transmission cooler off your cars transmission. How do you know how hot the oil temp gets on your harley. An oil temp gauge is also a good idea.

[@beri232]

What bike do you have and what oil temps do you see? I live in Canada and ride a 2014 Fatboy Lo. Oil temps on the dipstick show 250 - 270 degrees at temp. I’ve got an S&S 124 with 585 cams… Seems hot cuz the old 103 usually ran around 220 degrees.

[@petethepunisher3015]

Great addition, I put a Harleydavidson fan assisted oil cooler on my 2018 RGS after it got installed with a hotted up SE stage 4 , I like it and it does help I've put 32000ks on bike since install.allso I put a fender skirt on my front gaurd and mounted it 1/2" lower to protect my fan assisted oil cooler , I get no mud,dirt, stones on cooler ,still looks brand new , I do across the board , riding.

[@donwaltman4276]

Great video Doc, there's so much more to oil than I realized. Thanks so much for explaining it to us non techs.

[@LowCountryHarleyDavidson]

You bet!

[@paulfitzgerald6426]

07 FLHT. Dealer fitted the Harley CVO oil cooler (my request) which was located low on the front tubes as per all CVO's. Lasted maybe 2-3,000 mile before it was holed and credited under warranty. Guess I was one of the unlucky ones.

[@northerniltree]

I watched this oily in the morning. It was way cool.

[@stewartmackay539]

I have ridden a HD for years and the one thing that always comes to mind is how so far behind the curve HD are when it comes to adding positive innovations. This is a prime example. Always playing catch up.

[@DanielRyanScott]

Just because its not standard on all models doesnt mean its new. Harley had stock oil coolers on their bikes since the 70's. Its just a different package, like how some cars could get the power window upgrade back in the day.

[@artmchugh5644]

I would never ride a HD but I like your thoughts!! 😆😆😆🏍🏍🏍🏍🍺🍺

[@ryanmoore2779]

@@artmchugh5644 yet here you are commenting on and watching HD material. 🤡

[@artmchugh5644]

@@ryanmoore2779 I am a motorcyclist!!! Everything cycle related interest me , itchy boots videos are great ,about her travels. Moto GP videos are great because of the balls those racers have!!! But lots harley videos are about fixing problems with their bikes !!! I just find it interesting that they seem to think that straightin out that crap is normal !! Watch the " our ride life " new video, 95.000 miles on the chrome air compressor and it needed cams,oil pump and other stuff and they were smiling going to pick up the bike . I would be PISSED paying $$$$$$$$ for all those repairs!!!🤮🤮🤮🤮🤮🏍🏍🏍🍺🍺🍺

[@arkansasredneck7358]

Glad to hear Harley Motorcycles are updating their engineering. USA built Victory adapted this 20 years ago. Welcome Harley. Keep the improvements coming.

[@trigun890]

Yet look who went out of business????

[@eronfitz]

@trigun890. You need to look into why Polaris halted production of Victory, The reason had nothing to do with Harley & everything to do with Indian. Typical response!

[@denniskapczynski562]

My 1979 HD low rider came with a factory installed oil cooler

[@DanielRyanScott]

You know Harleys have had Oil Coolers for a long time now right? They are just not included in all models or packages.

[@claudelarocque3655]

Unfortunately victory is gone but Harley is still here. Makes you wonder who's smarter

[@benjohnson3700]

One of the thing you didn't mention is that oil temperature at crank bearing and rod bearing while driving it is lot hotter, if you take stock bike and you put cam and pistons and ride like sport bike, yes you should use oil cooler.

[@JamesFrost74659]

1979, I bought a brand new Superglide with the new 80-CI engine. No oil cooler, after about an hour of riding, the rear cylinder would get so hot it would start to predetonate. The rear pipe would start popping flames with a loud POW POW POW. I would have to pull over on the side of whatever road, shut the engine off and let the air cooled engine cool. I sold that bike a few years later, I was sick and tired of dealing with it. Yes I told the buyer why I was selling it for only $3000 dollars in excellent condition. I quit riding Harleys for 28 years. I now own two more, BOTH have thermostat fan assisted Ultra Cool oil coolers and the Electraglide also has Love Jugs. Even tho a V-twin engine configured fore and aft is a dreadful design flaw, I'm riding Harleys again. If I ever have a single problem trying to keep a V-twin (incorrectly configured) air cooled engine cool again, I'm selling both damn Harleys and I will buy a brand new, the best motorcycle in the World, a Honda Goldwing. (get a thermostat fan assisted oil cooler.) Have a nice day.

[@LowCountryHarleyDavidson]

Please stop in Low Country Harley-Davidson in Charleston SC and explain to me why you took the time to post this comment…..Doc

[@JamesFrost74659]

@@LowCountryHarleyDavidson Good morning Sir, I will do that. I live in Myrtle Beach.

[@robertjbyrd1]

My 2017 Freewheeler did not come with fan. Heating at rear of back cylinder head can be diminished by removing that cat that adds major back pressure in a short distance to back cylinder. Also using the EITMS ? to kick out fuel heating in back cylinder in summer traffic is a must imo.

[@trez2187]

Much respect for your knowledge and expertise. Whadya think about those thingamajig Forceflow Head Cooler fans that blow air over both cylinders? THX, Doc

[@LowCountryHarleyDavidson]

Jury is out on my end. My customer base is 50/50….Doc

[@afghanyeti]

I have a 05 FXSTDI, live in Southern CA Hermosa Beach, in the summer I can't get high enough on my toes to get away from my oil tank. Going to put an ultra Cool w/a fan on my bike. I'll take 20⁰ temp reduction, smaller blister😬 my bike now has 10k miles on it, so I do ride a bit.

[@charles1440]

This guy could star on any documentary! He is the.ultimate professional announcer ,

[@peterbergeris6510]

Doc, I was listening to Kevin Baxter video on camplate n he talked about oil coolers. He disagrees with Harleys system because it flows dirty oil thru the cooler first n then thru the filter. He uses Jagg coolers.

[@glenhardy4770]

Liked Sunday late afternoon 18 April 2021! Okay, when I have my pre-owned 2001 Sportster 883 tow-trucked in to the “vintage Harley-Davidson repair shop” for its imminent internal cylinder head rebuild, I will have them install an oil cooler. A short story about the Harley-Davidson Customer Care Department: they do not care about their own customer’s motorcycles once they see it as vintage. 😀

[@ut1004bp]

I'm going to have to slightly disagree with the reason for HD putting the fan cooler on the Trike models; rather than because they are moving slower, more stop and go or that they are in traffic more often, I believe its because of the higher 114 displacement, more engine load due to extra weight and rear running gear, and that they typically have or get Lower fairings which tend to block some free flowing air.. I live in the ozarks area, have a 107 Street Glide, and added Lower Fairings and I'm considering adding a fan to the OEM cooler and maybe I will be able to keep the Rear cylinder auto Shut-off feature disable..

[@jondoe8816]

I put a Harley on my 08 sglide and 09sbob hoses bent to fit. And was hoping they had thermostats. Thanks for informing me. Not much room for a fan though 🍻

[@StanHay-j6p]

Ambient temp here in inland Australia varies from-6 to +40 Celsius. Oil cooler with thermostat would be great ❤❤❤😊😊😊😊😊

[@andrewtheodorethomas]

Got my daily dose of Doctor Harley

[@wolfemanbog4176]

I am going to install the fan assisted oil cooler on my 2017 ultra classic run hot and wanted to not worry on street lights

[@MoeLarrycurly1]

Yep I use and still do a.. transmission or power steering cooler loop.. on my shovel

[@LowCountryHarleyDavidson]

That’s where it all began….Doc

[@donwaltman4276]

If you have it installed at a Harley dealership they can do it correctly and then no worries. I do know from watching Doc, the computer on the bike looks at everything and if it sees something it doesn't like, it causes problems.

[@rudeawakening3833]

Doc : thanks for having such clear , concise , and informative videos for us ! I’ve owned quite a few H-D’s since the 70’s , and remember back in the day , the bikers added oil coolers like the Jagg , which as you know mounted to either side of the frame’s down tube . This allowed “ clean “ air to run past it and STILL allowed said clean air to hit the V- twins forward cylinder . I traded my 83’ beloved FXWG Wide Glide in for a brand new FXLR Low Rider , and was SO DISAPPOINTED that Willie G and da boys installed the oil cooler smack dab in front of the engine’s front jug ! Now in the Texas heat , the air is preheating the air to the forward cylinder , and sending a blast furnace of scalding air to the rear cylinder … YOUR opinion please , sir ?

[@LowCountryHarleyDavidson]

My opinion is strong. Every one is under the misunderstanding that this large "oil cooler" in front of the front cylinder is for the motor. It is not! It is only to cool the front and rear exhaust valves. With the size of the M8 motor the Motor it self need a 10 row with fan oil cooler besides the center oil cooler. Like the old days. Yes I would rather have two oil coolers on each side of the frame tubes and let the front cylinder receive fresh air. I am stepping down from my box now....Doc

[@rudeawakening3833]

@@LowCountryHarleyDavidson Thanks for that most detailed response ! I was “ happy “ to see them install this oil cooler ; I was just shaking my head and asking myself - “ WHAT were their engineers THINKING ? “

[@morrisdennis]

Doc did u go 2 sturgis this yr? Rained every day!😢

[@LowCountryHarleyDavidson]

No this time of year is the busiest. Stayed home and worked….Doc

[@jeanvanderschuren5719]

Hello Doc, thanks for your videos!! I own a road king 103 from 2011- original-except air intake I believe. EIMTS is often on. I would like to make sure that the engine is cooled enough and improve the comfort. With the catalysator there is also lot of heat from the exhaust: what is the best for my me: cool flow fan, or adding the Harley fan cooled radiator. I believe that each of them can be mounted, possibly not with all the functionalities.

[@LowCountryHarleyDavidson]

According to my catalog neither will fit your bike. A HD oil cooler will help the motor. I prefer the Jagg 10 row with fan or the ultra cool with fans. To help you feel cooler....stick your knees out in the wind :) Thanks ~ Doc

[@joegerrera1914]

Yes what types of oil cooler do you recommend .

[@LowCountryHarleyDavidson]

A oil cooler made by a manufacturer with a history of development and great reviews. I endorse oil coolers with a fan and thermostat…..Doc

[@GunsHarleysUSA]

I have a question I hope you have an answer to..My GF has an 06 1200 Sportster which has the pop up oil cap and the problem is her leg keeps popping up the cap while riding and oil seeps out all over everything and I can not inure out how to prevent this from happening. Do you know of any way to stop this..?

[@michaelseroy9586]

I have a 2019 Street gluid, I put on the Harley Davidson air cooler with the fan behind it. My question is at what temperature does that fan kick on?

[@exexpat11]

I almost thought you were going to down them like a lot of techs do. I am all for function over looks (unless it is as ugly as a Suzuki Maduro or B-King). I am thinking about getting one for the crazy hot summer rides.

[@six8415]

I love the way he said “Hopefully” 😂

[@jarocla665]

I never got the oil air cool concept but they cleared up a lot for me

[@kpnomad7]

Doc , would a twin cooled benefit from a oil cooler and filter relocation system?? Who has this available for the twin Cooled?? Thx!

[@HealthvsWealth4me]

Thank you for this video Doc. I looked into putting on one of these coolers until I heard from a forum member a while ago...that in cold/cooler temps, the cooler can cause the oil to "froth" up and that would NOT be a good thing. I didn't hear you address this. ???

[@LowCountryHarleyDavidson]

The Harley-Davidson oil cooler mentioned has a built in thermostat that is used to prevent a "froth" up from occurring due to cold temperatures.

[@CarlosGarcia-ls4hn]

@@LowCountryHarleyDavidson I understand that you can also add a bypass valve that you can shut off the flow to the cooler for those of you who live in colder climates.

[@christidmas3995]

Quality of video and presentation is great.I agree with the other guys that you have a great radio presenters voice for sure.

[@nclinagirl]

I have a 16 Heritage with true duals and a big air breather. The pipes are wrapped. I recently added a fan assisted cooler with thermostat. I rode yesterday and it was a pretty cool day. The bike temp got up to 273 in stop and go traffic but was running around 250 otherwise. I’m worried about the summertime. Is there anything else I can do to cool it down?

[@LowCountryHarleyDavidson]

You have checked all the right boxes. Keep the oil clean as much as possible. Make sure your “tune” is correct. Too lean will raise the temperature. And keep moving, this is an air cooled motor👍…Doc

[@KnuckleDragginDad]

Hello Doc. Thanks for the info. I was curious if adding an oil cooler messes with the PSI rating of the oil system itself on the motorcycle? I was just curious if the stock oil pump can handle the extra oil lines, cooler, and all of the curves and ups and downs. Maybe I'm overthinking it. Anyways just curious and since you didn't mention it maybe it's not an issue. Also while I have you could I add a stock H-D oil cooler from say a 2017 Ultra or Freewheeler to my 2016 Ultra with liquid-cooled heads? Thanks Doc.

[@LowCountryHarleyDavidson]

Two points, purchasing an oil cooler designed for your Harley-Davidson will work with your designed oil pump. So installing an M8 oil cooler on a twin cam is not a good idea….Doc

[@stevePHXD]

Well you at least convinced me to get an oilpan cap that has the thermometer for my sporty. After awhile I guess I'll see if I need an oil cooler too.

[@Hillbillyhiker]

Just more stuff to break.and increase weight

[@chrisquas4113]

Where do you ride? I ride in Arizona in the summertime almost everyday, I don’t have any issues

[@pault4513]

Old timer told me on non thermostat controlled coolers If its cold enough for a jacket then you need a cover on your cooler One thing that harley owner should know is the oil needs to be hot enough to steam off moisture in the oil Too cold of oil pulls in moisture from the air around us which contains moisture Remember water boils at 212 deg F at sea level so if your oil is not getting hot it could be allowing sludge build up

[@LowCountryHarleyDavidson]

I agree completely. I do want to add. A customer covered his oil cooler for the cold months. He forgot to remove it!!!

[@dodge33445]

Doc, Will an oil cooler help for my bike? I have a stage 4 setup and it runs hotter than normal with the cams, and heads . But in traffic I dont think this would help? at lights and such.

[@dennism103]

I'm very pleased with my 2018 road king, it's fun to ride.

[@slit4659]

You sound like a 12 year old.

[@exupakias]

Thanks for your time

[@supermanlol67]

How come the oil cooler that HD makes for the sporsters doesn't come with a thermostat?

[@humoroustumor]

My 2019 softail slim came with an oil cooler but without an electric fan. Would it be possible to have an oil cooler with an electric fan installed by the dealership?

[@LowCountryHarleyDavidson]

HD does not offer a fan assisted oil cooler for the Slim. I went with Jagg 10 row with fan..I love it! Doc

[@peterbergeris6510]

How about using steel braided lines n not worrying about stones flying . I had one on a 85 fxr. Can I get one for an 09 heritage softail? Would you know approximate cost of parts?

[@ralphklink6288]

Steel braid covered oil hoses may well help guard against foreign object damage, however the heat exchanger body itself remains at risk of puncture damage from foreign objects unless protected by a wire mesh screen. Thanks, Ralph K in St Louis, MO

[@rudeawakening3833]

Awesome insights Doc ! I’m ( still ) highly disappointed that HD didn’t follow Jagg’s engineering by having the location of said oil cooler to either side of the down tubes of the front of the frame to allow “ clean air “ for the oil cooler AND clean air to hit the front of the front cylinder ! ( instead of placing the new HD cooler directly in front of the engine ) This was a poor choice on the Motor Company’s part ; it would have been NO MORE expensive to have chosen this better location. , IMHO . Peace ☮️

[@hectorbarajas9316]

Doc, …… i have question: Years ago I had a Sportster (1994) and there used to be an aftermarket round oil cooler that after you removed the oil filter you could screw on the finned oil cooler on and then the new oil filter behind it. It also gave your Sportster slightly more oil capacity along with extra cooling during very hot climates. During the winter time there was a leather sleeve that slid over the cooler to block the now much colder air flow on the fins but still allowed for a tad larger oil capacity w/o having to remove the cooler. I wanna say HD used to sell this product but have not seen one in 26 years. Any ideas on who made these animals and where/how I can get one now for my bike ?

[@LowCountryHarleyDavidson]

Check V-Twin web site and ask the cool dudes at Lowbrow customs...Doc

[@hectorbarajas9316]

K

[@franckycath]

THANKS clear and clean explanation!!

[@garyzanghi9272]

Great video Mike

[@LowCountryHarleyDavidson]

Thank you

[@boomerpaschall]

Thanks again doc, salute 🤚

[@LowCountryHarleyDavidson]

Salute👍….Doc

[@kennethking8943]

Doc What's your opinion on Love Jugs oil cooler ?

[@jackcalvar6489]

Doc do you need to re-tune the bike after installing an oil cooler? I ride mostly in city traffic and my 2005 twin cam gets my right thigh medium well while at a traffic light.

[@LowCountryHarleyDavidson]

No re tune with an oil Cooler addition. But maybe look into your tune. Timing might be too advanced at idle....Doc

[@ericrhinehart6055]

If Doc hadn't gone the "mechanic" route, he could have easily went into politics and become an ambassador to unfriendly foreign countries. He has a way of explaining where if you read between the lines a subtle message comes through. * oil coolers work. Trikes run hot. Pay attention to your machine. Pay attention to what HD upgrades through production runs.

[@jmoskaly1]

Ha Doc, how about the twin cooled model of the 17 CVO with Stage iv? How's that cooling compare?

[@LowCountryHarleyDavidson]

Twin cooled is awesome in controlling heat. I don't believe anyone is offering a larger oil cooler or fan assist at this time. ~ Doc

[@brianb1767]

Hi Doc, what are your thoughts on OILBUD hidden oil coolers, any experience with them? Looking for an oil cooler that will be the most efficient for my 2008 FLHX with a 103ci installed. My bike always ran hot since new, even without the upgrade to the 103ci. Your help and knowledge is deeply appreciated, THANKS and stay safe!

[@LowCountryHarleyDavidson]

Brian I truly appreciate the question. I did not know about oilbud coolers. I am looking into them. Before your question I have been looking into Jegs and ultra-cool. I am a true believer in a fan with a cooler for those stop and go traffic moments. There are key points. 6 row vs 10 row. How much CFM the fan capability. Thermostat fittings and fitment. Do your research as I am. An oil cooler is definitely a great addition to any Harley-Davidson. Thanks ~ Doc

[@brianb1767]

@@LowCountryHarleyDavidson Hi Doc, I want to thank you for taking the time to answer my question and give me suggestions. After my research and much debating, I've decided on the Ultra-Cool 3.0 dual fan assisted oil cooler. I'm looking forward to much cooler ride! Thanks again Doc, be safe!

[@jeffcoleman7019]

HD of Gastonia did my oil cooler. It was hard to make it not leak, but they finally got it right. 2000 Heritage

[@kevinroberts361]

Its a Harley...... I thought it WAS supposed to leak ??? Y did they fix it ?? Haha

[@pearljaime2]

Do any of the oil coolers available for sportsters (any brand, harley, jagg, ultra cool...) have thermostats?

[@LowCountryHarleyDavidson]

Yes. Each that you posted offer.....Doc

[@pearljaime2]

@@LowCountryHarleyDavidson I am much obliged, doc.

[@busterbrown1686]

Oil cooler was 1 of the reasons I went with Victory Cross Country instead of a Harley in 2016.

[@ryanmoore2779]

Un-Victorious

[@benji512]

Doc, I own a dyna low rider 2015 it gets hot often I did everything but it's still hot. Would a oil cooler help?

[@LowCountryHarleyDavidson]

For the motor Yes for you maybe….Doc

[@wb4514]

Whats your thought on the HD 260082-05c cooler for a 2000 RK ? Thanks .

[@LowCountryHarleyDavidson]

Yes go for it. I am a big supporter of a oil cooler on any Harley-Davidson. Thanks ~ Doc

[@georgedishman3276]

Doc I have a 2016 Heritage with an add on Harley cooler. It runs in the 220 to 230 degree range with 20w 50 oil. I changed my oil and went to straight 60w oil. its over 98 degrees here everyday. I guess the cooler did not like the thicker oil and doesn't flow as good. My temp now goes up to 270. I have went back down to 20w 50 and the temp lowered back down. Have you ever heard of this? I was following the owners manual with the recommended weight of oil for the outside temp. With the thicker oil the engine was quieter. (stock engine clatter)

[@LowCountryHarleyDavidson]

This is news to me. You followed all the right thoughts. What type of oil cooler do you have, and how are you monitoring your oil temp? In theory an oil cooler does have very tiny passages for the thick oil to pass through BUT most oil coolers have a thermostat that controls when the oil passes through the oil cooler so the thickness of the oil should have no influence on control of oil temp by oil cooler. This is a question I will ask Harley after you tell me what oil cooler you have and how you are monitoring oil temp. Thanks ~ Doc

[@georgedishman3276]

@@LowCountryHarleyDavidson The oil cooler is a Harley Davidson Brand. I am monitoring the oil temp with a Harley analog oil temp gauge. The oil cap one. I was running 250 to 260 before I installed the oil cooler with 20-50 oil. I also have the Screamin Eagle oil pump assembly to try and flow more oil.

[@beri232]

@@georgedishman3276 I ride a 2014 Fatboy Lo with an S&S 124 with 585 cams. My oil measures 250 - 270 degrees also (measured on my analog dipstick). I’d like to shave 40 - 50 degrees but I’ve heard most guys are only seeing a 20 degree drop in temp. I live in Canada…. so no Arizona heat here.

[@DanielRyanScott]

1: Harleys had oil coolers for at least 50 years. Its not standard for all models, but they are not behind. Because they are not always needed on all engines or models, I agree with their route of having the people who do need it pay and let the majority not pay for a part they dont need. 2: Getting the proper grade oil that wont burn off in the temperature you're riding at is far more important, including doing an oil change if that environment is going to change when you do a long haul ride. 3: Shut up and ride while you still can.

[@nicholashutson8985]

Do you recommend a oil cooler for 2019 Harley iron 883 ?

[@stephenertz430]

Can you install an oil cooler on a Milwaukee Eight with water cooling

[@LowCountryHarleyDavidson]

The aftermarket world is working on this. Check Ultra cool and Jaggs….Doc

[@philo5096]

Great vid Doc. I own a 2018 lowrider,does it have an oil cooler.

[@CovertOperation13]

If it does, you will see it on the front lowest part of your frame (in front of the engine) with the lines going into the motor right above the oil filter.

[@philo5096]

@@CovertOperation13 thanx man

[@arod5215]

Does the oil that cycles through the oil cooler the primary oil. ? Sorry I honestly don’t know. And I had something hit my oil cooler and it began to leak slowly.

[@leechristopher4410]

Doc, why didn't they also add an oil cooler to the twin cooled as the oil temp at high ambient air conditions gets over 250 deg F? (my test at 102 Deg F outside temp and 75 mph for one hour--255 deg F 2021 HD RG Ltd). I guess full synthetic can handle it but not conventional oil. Cars and liquid cooled motorcycles peak their oil temps at 200-210 F.

[@LowCountryHarleyDavidson]

You have pointed out a huge point. Car oil can not handle air cooled motor temperatures. Yes if I owned a Twin cooled, I would add an oil cooler….Doc

[@leechristopher4410]

Thanks Doc, one last question--I read on some blogs that the M8 twin cooled oil pump is lower capacity than the air/oil cooled M8's. My 2021, of course, has the upgraded pump from the early M8's. If mine is lower capacity than the non-twin cooled M8, would adding an oil cooler risk reducing total engine oil flow rates?@@LowCountryHarleyDavidson

[@peluchy]

Doc Harley Harley tri glide 2012 have an oil cooler from factory? and thanks

[@LowCountryHarleyDavidson]

Coolers did not come to Tri glide till 2014

[@mopar340dave]

I bought an extruded cooler, a thermostat and made my own custom brackets. Hardlines are about to happen.

[@PonchMuniz]

Good stuff Doc! Thanks!

[@mojomanmurph1925]

I ordered the fan for the oil cooler but once on the lift, they found out the chrome cover I had on it was not compatible and it was either a choice of having the fan and loosing the chrome cover or not installing the fan altogether. After paying $$$ for the chrome cover, I choose not to install the fan. I just have to make sure not to get stuck in stop & go traffic. Oh, the police version have them on from the factory. *** We, the techs and I, re-read the catalog description and it did say it wasn't compatible. DOH!!! Cool thing is they didn't charge me anything for the mishap and kept the fan and restocked it.

[@johnmaletic3177]

Chrome won't get you home, an oil cooler will!

[@glfmarmadison5126]

Hey Doc, Would I need an oil cooler on my 2017 Street Bob? It’s got stage 2, aftermarket Reinhart exhaust , and the engine cam. Or is it good for the engine over a the lifetime of the engine or bike, high mileage, etc? Not planning on doing stage 3 or 4 but maybe in the future.

[@LowCountryHarleyDavidson]

Glfmar Madison your bike should do well as is, just make sure it has a good tune.

[@rodgersheller5477]

Have you ever tested whether it's really worth it to purchase a Dooxi Car Adaptation products?

[@brucesantacory1390]

Mike, i have a 2012 FLHRC that looks like it has a factory oil cooler but my TC103 even with synthetic seems to run hot and limp mode comes on too soon in my opinion......help any ideas?

[@Hello-vr1md]

Hi im building a 2013 street glide air cooled harness etc.... ive bout everything for it from ebay.. so..when it came to getting the engine.. ive purchased an 2014 liquid cool ultra limited twin 103 engine.. now.. ive purchased the liquid cooling system..but how to hook it up to a 2013 oil cool harness and bike...

[@sashunter4352]

Hey Doc I have a 2018 Harley Breakout anniversary with a 117 Screaming Eagle kit fitted can I upgrade the oil cooler on my bike does the one you show fit my bike and can I get it from you I'm in the UK

[@mario930131]

Hey doc I have a xvs vstar 250 with cold air intake custom pipes drag style and a 115 main jet I took off the air injection system I use mobile 1 racing 4t oil would you recommend an oil cooler for my bike

[@lp8064]

Have you ever looked at Love Jugs? What are your thoughts?

[@LowCountryHarleyDavidson]

I don’t have enough experience with this aftermarket product. H-D offered a fan as an accessory for police models with side cars. It helped in their line of work. I like oil coolers with fans. Thanks ~ Doc

[@jeffreyengle2762]

It would’ve really been nice if Harley would’ve included a light or something to tell you when you’re Harley Davidson fan assisted oil cooler fan is on or off

[@LowCountryHarleyDavidson]

Nice idea...Doc

[@jeffreyengle2762]

@@LowCountryHarleyDavidson Curious if those upgraded gauges for the road king on Harley’s website would have anything like that built into them?

[@nevr2hi]

Sir, It gets hot out here in Texas. I have a 2017 CVO Street Gide. It’s set up to be water cooled. Would it be overkill to add a fan assisted oil cooler. What do you suggest the temperature should be for the 2 fans come on? What should the temperature be to turn them off or what should the differential temperature be? I was told 8 degrees I think it should be more.

[@LowCountryHarleyDavidson]

Yes I would add an oil cooler with fans. Read the fine print when choosing. Many oil coolers with fans do not fit on twin cooled Harley-Davidson with the lowers and water pump. My Jagg with fan comes on at 210. Thanks ~ Doc

[@YanCFLSantos]

Hello @Low Country Harley-Davidson My name is Yan and I have a v rod muscle 2014 and I am doing the coolant replacement. In the service manual says 2.4L, is already open the Radiator drain plug and Front Cylinder Coolant Drain Plug in just removed 2L coolant. Is that correct? How do I find the Rear Cylinder Coolant Drain Plug? I can not find it ... could you help me?

[@CBR250RMAN]

Hey Doc. What's your opinion on Love Jugs? I live in Savannah and as with you, it can reach 110 heat index daily during the summer riding months. My 72 gets me to work and back home as many days that dry weather allows. I was thinking about installing the jugs as opposed to an oil cooler. Any tips would be greatly appreciated.

[@LowCountryHarleyDavidson]

I prefer an oil cooler but the love jugs could work.

[@CBR250RMAN]

@@LowCountryHarleyDavidson thanks for the quick response. My 72 is small in the space category and when you mentioned debris hitting the oil cooler coils, I thought maybe the jugs would accomplish the same for my needs, without the additional risk of a sudden oil leak due to damage at the coils. Thanks again brother.

[@XFile91]

Why aren’t oil coolers standard on the majority of Harley-Davidson’s?

[@orgami100]

jeffry gagnon - That's not unusual in any hobby, people who have model trains, Ham radios or even gaming computers it becomes Non-Stop add ons...

[@majorpayne4098]

Riding is not a hobby it is a necessity

[@workingmansdead44-ug8hl]

The Pale Emperor $$$$$$$$$$$$$$$$$$$$

[@jm-mi7kl]

they are.

[@jerryhubbard4461]

cause it is about worthless.

[@octavioquilichini874]

Do I need to drain all the oil in a HD 103 to install an oil cooler? The oil has not run 200 miles. It's new.

[@LowCountryHarleyDavidson]

No need to drain. In fact after installing you’ll need to add oil👍….Doc

[@octavioquilichini874]

@LowCountryHarleyDavidson Thanks, I watch your videos, some two or three times, they are very enlightening. I just bought a 2012 switchback with low milage but a bit neglected. I've been doing maintenance upkeep myself. One exception so far, abs brakes will be attended to by the Harley dealer.

[@abiprates5943]

Is it possible to ad a oil cooler on a Yamaha V Star 750? Your comment! Thank you.

[@rugershooter5268]

On my XR during cool weather I never notice heat, warmer weather my left leg really feels the heat while I'm moving

[@LowCountryHarleyDavidson]

You ride an XR? 👍👍👍….Doc

[@rugershooter5268]

@@LowCountryHarleyDavidson and NightRod and WideGlide, and just got '19 1200NS

[@b2db.fisher]

I’ve been told that HD oil coolers route the oil through the cooler before it goes through the filter…if so, I think it should be reversed as clean oil won’t clog the the cooler over time.

[@LowCountryHarleyDavidson]

Good point....Doc

[@jerryhubbard4461]

During the years of AMF-HD, they added oil coolers to the Shovelheads. It did not last but a couple of years as it was not efficient. I have had two bikes I added oil coolers to. One Shovelhead and one Evo Heritage. A big waste of money. The best way to keep your bike from damage of overheating, stay out of parades and backed up traffic. I know the traffic is not something you want to be in but that is the biggest problem with overheating engines.

[@joem8875]

100% right. This is the answer. Jerry knows his shit

[@donbowman8085]

Is there a oil cooler for 2013 triGlide 103 engine

[@LowCountryHarleyDavidson]

I don’t see your being Twin Cooled so yes. See your local dealer, Jaggs or Ultra- cool…..Doc

[@08harleykmackay96]

Ive been wanting one for my 08 xl1200 nightster its had a few mods and I think this is making it run a little bit hotter then normal. I'd love to try one to see if it makes a difference but I'm not sure if it Will fit on my sportster with the forward controls does anyone know if it will fit??

[@LowCountryHarleyDavidson]

HD catalog suggests part # 62700082. Thanks ~ Doc

[@CATmanATL22]

Doc. I have a 2012 Roadking police, I was wounding if Harley makes a fan assist cooler for my bike or do you know of a good aftermarket one

[@LowCountryHarleyDavidson]

Harley-Davidson offers their tried and true premium oil cooler without fan. There are several aftermarket manufacturers who are offering an oil cooler with fan (s)..Jaggs and Ultra Cool are at the top of the list. Do your research, follow the reviews by people who have installed and rode with them in the heat. Thanks ~ Doc

[@kennethking8943]

Doc , What's your opinion on Love Hugs oil cooler ?

[@LowCountryHarleyDavidson]

No experiance with this product. Thanks ~ Doc

[@Vic-ng8if]

Very informative mate. Dont think I'll need on in Ireland but just checking, and now I know.

[@larrylong4407]

How about a coolant oil cooler self contained coolant elect pump just to the oil cooler ?

[@LowCountryHarleyDavidson]

That’s thinking way outside the box! Too much. An oil cooler with a fan works well enough….Doc

[@martinwall7297]

harley's V-twins need all the help they can get, cooling. and oil-coolers work.