Never top off your tank

[@evankolpack]

I have regularly topped off my tank for years. Never again. Thanks for actually explaining the problem. I generally ignore being told what to do simply "because I said so" or "because that's what the experts say", but when it's clearly and logically explained, that makes all the difference in the world. THANK YOU!!

[@mandatorymyocarditis8579]

I also have a habit of ignoring what other people say. lol. Hope I can change.

[@jaysant6958]

@Joe Irwin 😂

[@armchairtin-kicker503]

@Joe Irwin More gross weight reduce gas mileage. So although you improve your vehicle's range, you increase the cost. Accordingly, it is best to travel near curb weight as practical. For example, 15 gal. of fuel adds 91.5 libs of gross weight to a vehicle, decreasing miles/gal.

[@mariaperez-cuatzilo7864]

I never overfill my tank here in new jersey they do that

[@BigBreed22]

Me too. How is this not common knowledge. Like there needs to be a campaign informing consumers rather than don't overfilling and save the environment at the pumps.

[@choysum2508]

Thanks a lot, Gentleman, for sincerely warning people not to overfill.

[@jbaby007]

I really wish I had a general car maintenance class growing up.

[@RussHess-j2s]

Finally someone intelligent enough to explain the why.

[@n3gl3ctfounder]

Most vehicles are designed to spill out the hole instead of leaking into the vapor. But it is definitely still possible to spill over to the vapor. Great video.

[@bradz9413]

Like the 2015 VW Golf R? 🥶

[@hiben6938]

I do emission testing in Texas and this is the number two reasons why cars fail the test. People don't know it's bad to top off or think it's a myth. Great Vid!

[@ryans413]

Not just that it can make the engine run rough it screws up the EVAP system

[@sweethart2540]

I always did this to my crv and true indeed, paid so much for repair.

[@govinda102000]

@@johnpo2422 Yep. The guy who owned my corolla before me had it replaced twice as he always topped off the tank.

[@alvinsimba734]

@@govinda102000 thankfully I only did it once with my 2020 corolla but after watching this video, never did it again

[@geraldsmith7240]

Wow! That’s Really Something. More People Should Know. But Then The New Car Dealerships Wouldn’t Get, There Greedy Money.🙄

[@EdwinChenLoo]

Suggestion noted. Gas tanks are typically laying horizontally on the bottom while the engine sits higher. The gas station pump has a sensor at the tip to stop when the gas level reaches pretty much at engine height levels. If this was true, even filling the tank after the first stop would be bad. So I researched this and found countermeasures are in place: "The fuel tank typically has a vent control valve sitting on top of the fuel tank which allows only gas vapors to escape to the charcoal canister. When a fuel tank is completely filled, this vent valve gets immersed in liquid gasoline but it closes the outlet passage to the charcoal canister thereby preventing liquid gas from reaching the charcoal canister. " This is why many people have been able to do it for years ok. However, there is indeed a danger if the canister gets liquid gas: "This affects the charcoal pellet particles and it no more maintains its porous structure which then gets converted into a fine powder and would reach the purge valve and air intake manifold eventually clogging it."

[@rudetoy8264]

Beside vent control valve on top of fuel tank, the gas station also has pump stop built in evident by the first click

[@gregggoldstein3449]

This explains why my 74 Dodge Coronet was found in the exhaust system charcoal like build up on the inside walls of the exhaust tubes as the muffler installer who removed my old one had shown me. And i could barely fit my pinky finger inside the charcoal hole! Was amazing the shear back pressure that successfully exited through this narrow portion of the exhaust pipe.

[@jimjefftube]

I have to be honest. I started watching your video with skepticism but by the end of the video you explained it in a way that we could all understand. Thank you, I will avoid overfilling!

[@Fishbonesailing]

I was habitually topping off my Toyota Camry gas tank for some years. Eventually the check engine light came on. The Toyota dealer diagnosed a faulty oxygen sensor, or fuel sensor, or both. They recommended I replace both for $1,300. They did not say anything specific when I asked what had caused this. It sort of happened! I kept asking other places and an honest mechanic revealed to me it was my topping off habit. I was very disappointed the Toyota dealer did not ask me if I was topping off. I am certain they knew. Buyer be ware and stop at the first click! There should be a standard warning on the fuel door stating “Do not top off!”Thank you for this video!

[@satinbabydoll7171]

I am going through the exact thing. I messed my volkswagen up

[@markphilpot8734]

This is the first time I have ever heard of this. Why? Keep us uninformed and a shop makes off like a bandit. You are opening ears, eyes and minds. Way to go AMD! Bravo goes to you for your honesty and truthfulness!

[@chaoscobraflashbacks5044]

Why would a shop tell you this? They’re job is to fix whatever problem you created. They’ arent here to tell you anything

[@markphilpot8734]

@@chaoscobraflashbacks5044, calm down before you stroke out. There is little honesty in today’s world. No one expects a shop to tell anyone anything sir. Kicking me isn’t helping anyone, you included.

[@chaoscobraflashbacks5044]

@@markphilpot8734 im not kicking you, your talking like your are entitled to get this kind of info from a shop.

[@musicalwithashis]

By the way I own a Volkswagen and this info is available on owners manual.

[@indyguy3400]

How about using logic and thinking, when it clicks and stops its full. There's a reason it's made that way. Stop thinking you're smarter than the way the system was designed.

[@alperalp7407]

Thanks a lot for that. I have to say that, I have been reading and watching a lot from engineers and mechanics about common problems. This is the first time I hear such a simple and descriptive explanation.

[@0BAYAREA0]

Trust me folks, it’s okay that the pump stopped at $48.56 … stop rounding to $49.00 or $50.00 😂😂

[@anthonyemmm]

Yup I just changed my purge valve out last month. The dealer wanted $600 just for the purge valve repair. I bought the part and did it myself for $60. Good thing it was easy to get to. Thanks for this valuable info.

[@jetboy770371]

What did you do about the fuel fume canister ?

[@BTS-zq2vy]

Darn, I saw people doing it (topping or rounding up) at gas pumps and learned to do it too ever since! Thanks for the video.

[@wesleykelly2133]

This is probably the best and most comprehensive explanation I’ve seen on KZbin. Thanks for making this video.

[@hadiya2179]

I've been doing years on various brand of cars and motorcycles. I must be very lucky. Nothing happened so far. Your explanation makes sense. No more over filling. Thanks

[@Trevorfoggia]

I’m 60 and I’ve been brimming my tank every single time. I never knew this valuable info. Thank you so much. Greetings from Cumbria in the U.K. Stay safe and well.

[@angel1seven1]

In all my years, I did not know , over filling ,could cause so much damage to my car. And the reason for not over filling. Thank you for this Vital information.

[@Wilson632]

I have to admit this is first time I heard this explained in detail better late than never thank you good buddy for saving us a few bucks. You're a good man and hope that your business is blessed abundantly✌

[@isaiasacuna8695]

Thanks for the insight, I’ve heard about not over filling your gas tank but never had this explanation. Thanks, I’m sure other mechanics are going to be very mad at you for informing car owners on what not to do. Other mechanics will lose out on overcharging for those repairs.

[@LynxStarAuto]

Actually, we hate evap system codes. They are a pain to check sealing integrity on, and require expensive tooling (smoke machine, scan tool with bi-directional controls) to properly diagnose. It's why so many shops guess at these repairs. They just throw parts at it, in hopes that it fixes it. But no technician wants to dabble with an evap system fault. The gravy lies elsewhere.

[@susank4878]

Very helpful! Makes excellent sense. Since in Oregon we don't pump our own gasoline, I suspect that the best way to prevent the employees from shoving extra gas in is probably to prepay for a certain number of dollars, knowing that the tank will not be quite full.

[@fredericagullo208]

I had no idea. I will remedy my behaviour and educate my learner children. Thank you so much. God bless. You are definitely a blessing. Frederic

[@rickbria8420]

You are 100% correct! I’m a retired Subaru shop foreman. I worked at the same dealership for 42 years. The last thing a tech wants to see is a CHECK ENGINE LIGHT WITH AN EVAP code. not only is it extremely expensive for the customer, it’s not a fun thing to fix. Great video.

[@dimitriberozny3729]

Efuck issue!!

[@darin5794]

Thanks for letting us know.

[@slapdat.byteme]

Kia techs cleared the Check Engine light in my wife’s Sportage a couple times but couldn’t tell me what was causing the light to come on. They checked the fuel system, gas cap seal, etc. Hasn’t come on in years since we stopped adding fuel when the gas pump shuts off.

[@SreeOne]

I've been doing this for the past few years, so far my ToYo has been kind on me. I wont do it any more. Thanks CC-Nut, you are obsessed with this knowledge and to share it with all. Thank you.

[@anthonydiaz3350]

You’re one of the only a few people who’s ever explain that in detail like that to me I will stop doing that today. Thank you.

[@robertchen8297]

Wow, this is the first time I am learning about this and I have smelled these fumes before. In our country, the gas station attendants typically like to overfill maybe to get max sales. I have begun to watch your videos and I love your outstanding knowledge and talent plus integrity in your expertise. (Scott Kilmer is probably a close second!). Your videos are also so professionally done so it seems you have superb multi-dimension skills. Thank you for your videos.

[@nononsenseBennett]

EXCELLENT information. Thank you for educating people. It's a sign you are a good mechanic who cares.

[@rontiemens2553]

I think this is the clearest explanation of the nature and operation of the EVAP system I have ever seen. Thank you!

[@stevenm3141]

I'm glad to say that was perfectly clear and well demonstrated. I've been trying to do the same thing with many people, and I can't believe how many actual mechanics don't have a working knowledge of this!

[@braronfire]

Very knowledgeable

[@emilianozapata_714]

I'm a. Mechanic, I have knowledge of this. & still do it. Haven't had any problems on any of my cars yet been doing it for well over 15 years. Of & on. Not all the time 😁🤷🏽‍♂️

[@fivespeed42]

​@@emilianozapata_714because most cars have counter measures in place. There is a valve that will close the line if the fuel gets to the point to where it wants to head to the vapor canister. Although everything he said is true if fuel did go into the canister, it's most likely not happening

[@gm2256]

Great helpful visual. Every mechanic says “don’t overfill” so I’ve always listened, but it’s nice to see it shown exactly why you don’t want to overfill. Thank you!

[@dwfantom5892]

Wow! You are very thoughtful and generous in sharing your knowledge. I have made the mistake of over filling my tank many times and the result was exactly as you’ve explained. I had to dish out some money to get the purge valve and canister changed out. If I hadn’t seen your video, I would have continued to overfill and perhaps reaped another round of repairs… Thank you so much for making this video! May the good Lord bless you!

[@rscott2247]

I have an 08 Sienna with over 226,000 miles and I have noticed that I can usually put another 2-3 gallons in it after the gas clicks off. I don't smell any fumes but lately my oxygen fuel sensors have been throwing check engine light on and there needing to be replaced. But I don't know if its related to normal wear & tear ?

[@renecintronjr.2262]

I've been a DIY for years. And I never knew this. Great presentation! Great information. Thank you!

[@traeucity6087]

Thank you, very much. I have topped off my gas tanks my entire life. This being something that became an issue in 1996, explains a lot. I learned from those older than me, and it wasn't an issue for the cars of my youth. In fact, I can remember my friends and I, shaking our cars, in order to get more gas in the tank. I topped off the tank in my F-150, as recently as last week. I'm glad KZbin suggested your video.

[@freemanmt1]

I'm convinced! Thank you so much for your hard work and explaining in this video. I will never top it off again.

[@papacamino2286]

Been doing it for over 40 years have never had a issue,not worth it anymore for all the right reasons,great video,thanks!

[@bobbybryant3339]

Thanks for that tip. I will no longer overfill my gas tank.

[@flagmichael]

I knew about this (and the prices!) for several years, but wondered why I had never seen a KZbin video on it. Good work!

[@TheCarCareNut]

flagmichael thank you!

[@menadionnassertamtama379]

scotty kilmer had posted about it

[@bodhi9464]

Thank you for this - have been driving for 35 years and never knew !! Much appreciated 🚙🇦🇺

[@kenm7179]

I never realized this. Have occasionally topped off in the past, won't do it again. And btw, just had to buy a replacement evap canister (used, hope it's good- haven't installed it yet). There seem to be about a hundred elements to the emissions systems, all of which can set off the damn check engine light!!!! Update- the used canister from ebay solved the problem (I paid a pro to install it). So, after replacing the gas cap, and the filler tube, and now the canister, it's been good for 4K miles so far.

[@waitawhileexplorer3904]

This all makes sense and goes against what was instilled in me many years ago. Time to stop overfilling as it is not necessary as you have explained. Thank you for this insight.

[@jerryq1000]

I've been guilty of topping off for years...no more. NOW, it's been explained. Thank you.

[@harley13purenrg]

Thank you for making a video on this. I've changed so many vapor charcoal canisters on cars because people have drenched their vapor charcoal canister in fuel by over fueling.

[@natehailu86]

I’ve just joined those jackass ppl 😅 now my engine light comes on and all those kinds of problems 😡. Had I known this earlier, would have saved my hard earned $$$. 😏

[@loreleibrewer3803]

Probably why my 97 Camry's vapor charcoal canister died before anything else on the car did (I bought her used, was 4th owner)

[@ManCaveStudio]

WOW! I never knew this was bad for the car. I owned a 2003 Corolla for 12 years. I would fill to the cap on long trips which was almost every weekend. I was able to get an extra 2 gallons into the tank on average once the gas nozzle clicked off. On long trips, this would give me at least 60 to 70 extra miles. I use to love doing this to see how much of a trip I could get on a topped-off tank. My best was 488 miles. I maybe could have gone more but didn't want to risk running out of gas. In the 12 years, I owned the car I never had a problem with the EVAP. My current Corolla I continue to do the same things on long trips but after watching this video I will stop. I had no idea the damage I could potentially do to my car. Thanks for making this video.

[@andrewmxdiagrams3258]

I did it for 17 years to my Toyota Prius 2001, 14 years to Sienna and never had any problem with EVAP system. I think Toyota is made the way it does not affect canister. It will depend at what level canister is mounted and the hoses routing.

[@niaz.shovon]

I also own a 2003 Corolla, and I used to overfill the gas tank as well. Here in my country only gas station attendants are allowed to fill the gas tank, and they always overfill it. From now on I'm gonna strongly insist them not to do so.

[@DylanL69]

@@andrewmxdiagrams3258 oh yes they do get effected

[@emilegro]

Also did the same on my 2003 Toyota Tazz / Conquest (South Africa), but I had to remove an "airlock" in the engine bay to squeeze in an extra 10 liters of fuel. I think the vehicle having carburator instead of fuel injection might have made the difference as well. Never had any issues either.

[@edsaurette8741]

God bless you

[@brianvogt8125]

Great explanation of the parts & cost! Thanks! It seems that I've been lucky - 21 years of high-filling my 1999 Australian Camry. It's a habit I'd practiced with my 1960s Hillman cars since 1972. When studying for my German drivers licence (Führerschein) test in 1999, an instruction said not to fill past the pump cut-out, but didn't explain why. I assumed it was because lots of people go on to create a messy splash-back. I never heard of an evap canister until Scotty Kilmer mentioned it this year.

[@davidhahn216]

ㅕ

[@annyer262]

Do you live in South Australia? No annual inspections there! Just take out the canister, cut it open, dump the carbon out then glue it back together and everything should be good. Apart from the smell on a hot day!

[@Sheen-k7d]

Great illustration presented. Thank you so much sir for sharing it. I'm a new car owner and never thought that would be damaged to the car system brought when overfilling the gas tank. Keep it up and God bless

[@ralphchristianson]

Many years ago i had a Chevy Malibu, I was one of those people who actually read the manual. It had a page explaining this, suggesting to not to top off the gas. They did not go into this much detail, but it was suggested the system in the car was designed for the owner to not top off the gas. This is an excellent explanation of how this all works.

[@jsteganius6969]

Excellent explanation!!!! Step to the head of the class!!!!! If all else fails, read the owners manual!!!!

[@frandanco6289]

So... If the car makers Know, this topping off will harm the vehicle, WHY don't they make the gas tanks SMALLER, or put the evap canister higher underneath the car so the "extra" gas will not reach it????

[@emtlao]

Ok, now I know now. I’ve been over filling my new 2020 Tacoma trying to get extra mile. I know now. Thank you for letting everybody know.

[@richardbreese9590]

No Shit dumby it costs to f%$#@ing much FJB

[@southmark]

@@captainamericaamerica8090 It's got nothing to do the quality of modern fuels. (ESIM) pump & charcoal vapor cannisters are not designed to accept liquid gasoline ( introduced by overfilling the fuel tank), only gasoline vapors, and can be destroyed over time or one time . It will cause the check engine ( MIL) light to illuminate. JEEPS are prone to this as well.

[@arnelachivar6743]

@@captainamericaamerica8090 i think it is not about gas being clean but about vent being wet.

[@hamiltonzuniga]

Bro, this doesnt make sense… I own a 2012 Toyota Camry, which I bought new in 2012… it now has 505,255 miles… I have always filled it till gas is visible all the way to the top of the tank… I have never had issues with my car and just had to replace my alternator at 247,000 miles and radiator at 293,000 miles.. suspension, has got control arms and struts replaced at every 70,000 miles…I do it myself to save myself money.

[@TheJunior1964]

I have also been filling it to the top for years and I never had a problem

[@davidmair7497]

Great info. No problem in the UK. Fuel cost so much I can not afford to fill the tank never mind top it off.

[@johncowhig7196]

Car care guy, thank you for explaining this. I sometimes top off my car but I won't evermore. I just didn't understand the video but I have trust in you.

[@syedali5169]

Thank you for a very informative video...never ever imagined, or heard of this before! Have noticed a lot of people topping off at gas stations - and I must admit I have done it a few times too.

[@jjpac2011]

I have a 2011 Tacoma and 2014 Rav and usually top off until I can see the gas level. Hopefully I've dodged the bullet since no "Check Engine" light has come on and I still have no gasoline smell in my garage. Thanks to you, not doing that behavior again. Dealerships should be emphasizing the consequences of this activity.

[@martinharris5017]

Thanks for the explanation. I had a close call with this issue and saved the car by some quick thinking and remedial action once i realised what was happening to my fuel system. Don't normally fill the car beyong three quarters of a tank, but just one time I made the mistake and I was lucky. Won't overfill the car again!

[@ricardoseales6501]

Thank you for informing all car drivers because I didn't know I have a friend that does this in his vehicle and he doesn't understand why this is not good but he likes to fill it and over fill it actually he did it in my car a few times without me knowing since I've watched this video I will be more vigilant from now on

[@wolfeadventures]

As someone who loves cars and has been driving them for 30 years, I never knew the risks of topping off. I’ve been topping off for years one to get more gas into the tank and two to round off to even numbers. I won’t be doing it anymore. Thank you for this information!

[@BobbyS1981]

Recently discovered your channel and am loving it. One thing to note about EVAP system requirements, they have been in place at the most basic leve staring in the 70’s with a charcoal canister typically mounted under the hood and a vacuum actuated purge valve. My ‘81 Dodge Ram D250 with 318 and 4 barrel Thermoquad has two large canisters. It has a time delay solenoid controlling vacuum to the purge valves and a solenoid assisted bowl vent valve to control emissions. Pretty advanced for its time. I’m guessing the current generation evap systems have been required since 1996. Regardless, this is a very informative video that everyone should pay attention to. If the pump clicks off and I don’t think my tank is full, I quickly check the fuel gauge before I squeeze the lever again to avoid this problem.

[@nitrofreakmanho]

Thank you for the thorough explanation. I knew about over filling potentially ruining the evap canister, but never knew exactly how..until now. Thanks friend!

[@eddiedav6162]

It was my habit over 40 years now i have to stop it thank you

[@dongourlay6192]

Thanks for the explanation. I am one of those people trying to round up to an even number at the gas pump. Now I need to break the habit!

[@dj3114]

I'm going to stop topping off, but I'll probably round to the nearest nickel - the foam will go down far enough for that, handier for subtraction.

[@johnroberthanna1623]

if there is damage, it's already done.

[@DylanL69]

@@dj3114 I wouldn't

[@dj3114]

@@DylanL69 The worst case scenario is rounding from .01 to .05. At $3 per gallon, it equates to 13 one hundredths of single gallon. I think it would be fine. Per the video, I'll never "top off" again, but to the nickel, I'll chance it.

[@mtbwill69]

On just about every car ever made made, the vent valve is normal open. It only closes to check the EVAP system for leaks when the PCM runs the test cycle. If you are getting liquid fuel into the EVAP canister it is because the roll over valve in the fuel tank has failed. In most cases, this will require a fuel tank replacement and likely a new canister. This has nothing to do with how much fuel you put into your tank. The fuel tank is designed to accept a full condition without damaging the EVAP system.

[@Aussiemarco]

I used to fill up to the top of the hose all the time petrol was cheap! But they were old Corollas, first was a 1979 model, the second was a 1989 one. I can’t afford to do it now 😂 By the way, this information needs to be put out there. I’ve been driving for 42 years and never knew this. Great work 👍👏

[@vueport99]

Did the same to the same corolla not all issue whatsoever. Of course the cost is environmental if you happen to spill fuel on the ground if you over fill and get it on the paint too

[@mitchhedberg4415]

Old cars dis not have this, they just let gas fumes pollute more.

[@kensweet6022]

Well presented sir. If one is simply told "not to" or "must do" without explanation, then the student will learn very little, if anything at all. If you don't understand the "why", you are less likely to know the how! As a former driving instructor I always instilled the "why". It was especially satisfying when I presented this to pupils who had come to me from other tutors, for whatever reason, and they suddenly had the "light bulb" moment, usually followed with, "Ah ha! now I understand it" !!!

[@GBCobber]

Def helpful and informative. I used to drive long distances and would often fill right to the top. Thanks for tip.

[@MartaStephens-tw8bo]

No one ever explained why you don’t top off your tank. You are a good man Ahmed. God will bless you because you are honest, care, and you are not a nut like so many mechanics out there. I watch you and Scotty Kilmer all the time since I found y’all about a month ago. I’ve made lists of things I want to fix on my 2000/4 Runner. One problem is when I go to buy the items I need, men will question why I need these items, and who said I needed these items. They question why this 66 yr old grandma is speaking car so well and intimidating them. They do not care to help me find what I need, and try to sell me other junk. So frustrating!!! Thanks for educating those of us that have beautiful polished nails with a little grease under them. God bless you…Marta

[@carlwilmoth7141]

❤

[@mrjoehimself]

I've always thought the truest form of a Leader is a Teacher. Love your content!

[@theraptorus]

I did this a good bit on my 2008 Toyota Corolla. In 2016, the “Check Engine” light came on and when I called the Toyota maintenance department, they asked if I tighten the gas cap, which wasn’t the case. Turns out there was something wrong with something in the engine. Repair cost was about $700-$800. Needless to say, I never overfilled on gas again after that. After watching this video I learned even more about the consequences of over filling on gas.

[@MegaFinalRound]

Did they ever figure out the root cause? 🤔

[@steveclark5206]

Great explanation. I was telling my daughters not to top off their tanks, and your video was the perfect one to show them why. Much better than I could have ever explained it to them. Thanks!

[@saleemmohammad4329]

9.

[@thisoldbag8336]

This video showed up via Google algorithm, really glad it did. I was always told it's OK to round up when filling up on gas. Never knew how detrimental it is to the EVAP system. Wow, thank you for posting this video. I suspect that is why my 2003 Matrix kept triggering codes even after I replaced the CAT. Car was totaled right after I had the CAT replaced, engine light went out, but soon returned. I always rounded up when filling the tank never smelled gas, but the car was parked outside the 12 years I owned it. lesson learned.

[@TJ-ht3jb]

I replaced an evap canister on a 2003 matrix that my wife had. I had to tell her several times to stop adding gas after fill ups afterwards. I bought an after market Dorman part ( a lot cheaper) less than a 100 dollars. She finally stopped over filling no more check engine lights. 260,000 miles still running good.

[@Navigator5]

Being a culprit, this information has come to me as a shock. Thank you for the advice.

[@darinlapointe]

This was very good to know. I been topping off my gas tank for 30 years. Thank you.👍🏼👍🏼👍🏼

[@frandanco6289]

We, who drive thousands of miles top off the tank because it does not hurt our vehicles, and we want the extra Range before we have to stop again... Also been doing it for 50+ years and never damaged anything... :)

[@itchyallover9]

You are so right. Had to change mine on my 2004 Corolla. Always "topped it off" to the nearest exact dollar. It was a matter of time and I paid the price for a new canister approximately $ 300 for the part. I did the labor.

[@toycoma98]

Dont forget to tighten your fuel cap until you hear 1 click or as long as it clicks or is tight. I used to work at a honda and ford dealership and i see alot of cel concerns, after scanning, turns out to be evap codes, then some of the mechanics would recommend a evap purge valve just to screw you. Tighten your gas cap.

[@Aurumane]

Finally I have an explanation why my toyota highlander got the EVAP light on!!!!! Totally make sens and these car guys local mechanics they all tell a different story!!!! God I'm glad I know what is it now.

[@jmabs5096]

Sounds like your "mechanics" are all crooks or really lack luster in the IQ department

[@actualmastermind]

He is right, I used to top off my tank on my 2020 Ram 1500, it stopped accepting gas, and if forced, it would float outside the tank/gas door. Luckily it went away by itself. I never top off since then. Tank stopping to accept gas is a really difficult issue to diagnose when the vehicle is taken to dealership.

[@light279]

Thank you so much.When I purchased my Toyoto Corolla six and a half years ago the salesman told me to never top off my tank. I don'r recall or don't think that he ever gave a reason why. I initially followed his instruction but as the years went by, I started to top off. I hope that I have been lucky and not done any damage as you described. I will follow your instruction IMMEDIATELY

[@williamcotter9511]

Excellent video, well-illustrated my friend. My father always warned me about overfilling a fuel tank and now I know why. Thanks

[@captainamericaamerica8090]

HE' WAS A WORRY WART= 🐄🐄🐄🐄🐗🐗🐗WE OVER FILL THOUSANDS OF TIMES!! EVEN MORE! AS MY GRAMPS RUNS MANY TAXIS!🚕🚕🚖🚖NONSTOP!! IN OVER 5O YEARS! WE'VE NEVER HAD PROBLEMS!! SOME OF OUR TAXIS HAVE OVER 8OO OOO!! MILES!! WE DO ONLY USE ALL FULL SYTHN. OILS FLUIDS!! PENZOIL' ULTRA PLATINUM!! IS THE BEST! 💪👊🐯🐯🐯👑👑👑🏆🏆🏆🏆🐯🐯🐯🐯

[@paulr5027]

Sorry. Read my above replies, myth was debunked years ago....

[@everydayfun9531]

My dad just tells me to fill it up a little bit more and due to that I cant Stop my bad habit of overfilling the gas tank.

[@ricardoseales6501]

I'm trying to educate people on why this is important but a lot of people just don't care at all I wonder why .All I can say is that your videos are essential to many thank you .I've noticed that people drive way over the speed limit not considering they are spilling out gasoline I'm shocked at the behaviour of people .

[@susanmeredith4957]

Never knew the reason! Thanks again for this! Rare to have gas attendant at a station anymore but they always over fill to the nearest dollar!

[@BLUERAY1611]

I never know this and I always used to overfill my gas tank. Thank you for enlightening me. I should have seen your vedios earlier.

[@tomkaufman3914]

Yup did it to my 97 subaru legacy,I am hoping the fuel evaporates in the can,so far no engine light coming back on.Thanks for the tip,it makes sense.

[@Johnwillbegone]

This is probably why the check engine light is always on when everything looks fine. My father and brother are mechanics and I never heard this. Great info. Thanks so much.

[@bedazzled64]

Wow this was so helpful. Thank you for the illustration showing what happens. I never knew why not to, so I appreciate this!

[@Sabkebhaijaan]

Thank you so much for this informative video. I watched this video via the link provided in your latest video about things to avoid doing to your modern cars. The guy's here at the fuel station have this peculiar likeness towards rounding the billed amount for fuel and so even after the nozzle clicks they keep on filling till the billed amount comes to exact digit figure (not decimal). I recently had this experience at a fuel station, the guy literally filled another two litres because he was unable to get hold of the digit figure (without decimal) and what for, the payment is done usually through card. And yes I did experience the car smelling like gasoline after I went for a ride with that over filled fuel tank! Thank you so much.

[@ronrubicon1593]

Good video, Nut. Your diagram and clear explanation really helps folks who are ignorant about how vehicles work.

[@johngregreid1]

Yours is one of the best automotive KZbin channels. Very important & truthful help. God bless you. John Toronto, Canada

[@gusteyigor]

Thank you so much for doing such work!! I was doing these at the pump so many times, I might got lucky. No more of this

[@villegas188]

Thank you good to know i am one of those persons . Not going to do it again

[@MadDad303]

I bought my first Toyota last year & bought my wife her first Toyota last week. I really want to take care of these cars so they last as long as possible. Thanks for all your videos & free informative content. 👍 ...and my the Lord bless you too!

[@williamtucker5855]

Thanks! I have a 2021 tundra I’m not going to top off anymore, probably cost a lot more now your video is two years ago!

[@ig8895]

I just found this channel and it has real good info like Scotty Kilmer. Subscribed.

[@DylanL69]

It's better then scottys channel

[@lostinmobile]

Absolutely amazing video! Driving all my life but never knew about this issue! So many thanks for the description and the warning 😌🙏🏼

[@marcbungener1877]

Very clear explanation, I have been doing the right thing but not knowing precisely why it was bad. I had assumed overfilling could be dangerous because in case of heat the would no space left for gas to expand and also though by trying to hard I might just get dirty with oil. Thank you

[@renejacques8288]

Best explanation I've heard, and I've been researching this thing for a while now. Had I heard this last year, I probably would have changed the whole system, I still might.

[@davec8894]

If anyone has ever experienced "vapor Lock" on their fuel system, this perfectly explains why the car may sputter/cut off mid-acceleration, (coast to a safe area hopefully) open the gas cap, hear the "whoosh" and the car starts up and runs again. Not saying that this is always the case, however after seeing this video and being guilty of overfilling the tank myself.....I am now trusting the "click" at the pump. EVAP systems have been around in Japanese autos since the mid-'70s (fuel injection revolution) I believe? My 1977 280Z had the charcoal canister and purge lines/valves, had no clue and shops in my area didn't either back in the late '90s. Damn hate that I sold it because it may have had fuel management issues that realistically could have been my own fault!!!!!!!!! C'est la vie. Thank you Sir for your continued and unbiased perspective to educate us folks that are from DYI'ers to a novice, and presenting a very simple and effective "tool" called Knowledge and Experience. Much respect for your work........Have a Blessed Day! Dave C.

[@dasboot5903]

I was filling up my tank to the max for a while ..... when the gasoline prices jumped up !!!! Then I heard about this particular issue of the EVAP ... so, I stopped filling the tank to the max. I had some problems with EVAP for a while ..... than after changing the valve I had less and less "CHECK ENGINE" light appeared on my dashboard !!!! *So .... your honest WARNING makes perfect and absolute sense !!!!* Thank you so much !!!!

[@aatifkhan2203]

Your videos are very useful and informative. I actually have never seen a vapour canister filled with gasoline. I've never seen any vapour canister destroyed by gasoline or any vehicle needing its replaced.

[@TheBenjammin]

Look up south main auto on KZbin. He has videos that prove it.

[@MrBlindbird]

Ohow...that's me...and now i know why the check engine light always comes on after i refill my tank to the cap...well,thx for the lesson and i hope it's not to late for my engine...

[@joseivanbeau]

I'm guilty as charge. You gave me a lesson, no more top off. Thanks

[@bugeyesprite119]

Great video with a clear, logical explanation. I've heard this for years, but never understood why you should not do it. Now I know. I typically have let it click stop then add a little more until it click stops again. No more.

[@ChrisHatchback]

Finally have a good explanation for this and THIS is exactly what my 2011 BMW is going through right now. I have the service light on. Threw a code with my mechanic. He mentioned something with the EVAP but didn't have a solid explanation, said he reset the light and sent me on the way to see if it comes up again. It did and is still one. Luckily I'm in the process of buying a 2023 TOYOTA 4runner Limited and trading my first and last BMW!! But this definitely makes sense because I am guilty of topping off my car and I do smell some slight fumes of gas. Thank you! Love you videos, Subscribed!

[@slik560]

I see people at the gas station clicking away, trying to fill it right to the filler cap. I try to let them know it's a bad idea but no one listens.

[@alexsurh1472]

Just let them ruin their shit, they deserve it

[@erikhaw7313]

Haha, hence the video.

[@boobtubeakatv1296]

Send them this link OR write it on a few pieces of paper and hand it to the ones that you may think will still learn a NEW trick 😉

[@malcolmmarzo2461]

Excellent. Older drivers could be a problem because they are used to vehicles previous to evap systems. There should be a warning label on the filler.

[@MicheleMaramarco-w5z]

Such a small thing and high cost repairs,makes a person dislike new cars.