24.5 gal. Gas Tank

Koz

New member
I filled up the tank the other day and it took 24.5 gal. This was filling the tank slowly, right up to the cap. I guess the long filler tube must hold 1.5 gal.

Koz
 
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don't overfill the tank

there is an air filter/breather in the filler neck, if this gets saturated it can cause problems. I wouldn't fill more than half a gallon past when the pump automatically shuts off.

If you put 24.5 gal in the tank at a fill up, did you push it into the gas station? The tank is 23 gal (officially), I could see where the filler neck could hold about 1.5 gal (plus or minus), but you had to have run that tank dry. Also remember the fuel pump is in the tank, not on the engine. When you run the tank dry, you are running that pump without any lubrication and could cause the pump to fail.
 
The trip comp showed 0 miles left, so I was on fumes. I gave the attendant a bag of shit about having a 23 gal tank and putting in 24.5 gal. I read a post somewhere else about somebody also putting more then 24 gal in.

Koz
 
I saw the story on the news about this. The gas station may be pulling a scam. The pumps can be altered to display more gallons than you actually got. I'd try to report it to the state. Problem is the state's equipment may only measure 1 - 5 - 10 gallon increments. The pumps can be programmed to be accurate at specific volumes to pass the state tests.
 
Koz said:
The trip comp showed 0 miles left, so I was on fumes. I gave the attendant a bag of shit about having a 23 gal tank and putting in 24.5 gal. I read a post somewhere else about somebody also putting more then 24 gal in.

Koz

Just because the trip computer showed 0, doesn't mean anything. The trip computer goes by averages and calculates how far it thinks you can get, but it is on the conservative side. I left my wallet home one day and almost ran out of gas. When I finally got to the pump, it said that I had 4 miles left on my trip computer, when I filled up it was only to about 21.5 gallons. Leads me to believe the 4Runner had some fuel in reserve and the trip computer was wrong.

Everyone knows the trip computer gives you a crappy estimate on MPG, why would it be any better on the trip/distance calculations?
 
The computer gives you the range (albeit incorrectly) you have left before you only have 2 gallons left in the tank. According to Toyota USA customer support (not the dealer), this is the minimum safe level of gasoline to have in the tank to lubricate the fuel pump and prevent failure. Anything below 2 gallons remaining could fail to lubricate and/or cool the pump in the tank leading to pump failure.

I've never added more than 21 gallons to my tank and I had a range of approximately 10 miles left with the little yellow LED on the instrument cluster glowing brightly for miles.
 
I have gone 30 miles with the range meter reading 0 miles. When i filled up it took just over 22 gal. So i figure you could probably squeeze 40 miles with 0 range depending on your driving. Wouldnt want to have to push it tho. How far has anyone else gone with it reading 0 miles left?
 
Re: don't overfill the tank

boston_kevin said:
there is an air filter/breather in the filler neck, if this gets saturated it can cause problems. I wouldn't fill more than half a gallon past when the pump automatically shuts off.

Everybody says this on different automotive forums (on the S2000 forum they warn of the same thing). I have been topping off cars for years without any problems at all. I just got done taking a 5,900 mile meandering road trip from San Antonio, Texas to Vancouver, BC, Canada over the course of the last 2.5 weeks in my 4Runner and on EVERY fuel stop I would top up between 2.2 and 2.7 more gallons after the pump clicked off automatically. Every fillup I always filled until I could see fuel in the filler neck. I never had a single problem and everything ran perfectly normal.

The only 'issue' or complaint I have about the 4Runner is that on my V8 the clutch fan was running a LOT through the mountains in Utah, Colorado, and northern New Mexico when I was pushing it at 80-90mph the entire day. I could hear the fan roaring even at 85mph in overdrive... I was at 5000-7000ft elevation and the temperatures outside were in the upper 90's to lower 100's, especially going through Moab where it was 102F.

The temp gauge never moved no matter how hard I pushed it and even though I now have over 6300 miles on this oil change (I switched to synthetic 200 miles before leaving on the trip), the oil level is still right at the upper mark and only slightly darkened in color from when I first put it in. This V8 engine is simply amazing.

Ricky
 
It really doens't matter if the trip computer says 0 or 100 miles left. If the gas tank only holds 23 gallons.. then putting 24.5 gallons creates a problem. How does one have a pint of beer in a wine glass?
 
iFORCE said:
It really doens't matter if the trip computer says 0 or 100 miles left. If the gas tank only holds 23 gallons.. then putting 24.5 gallons creates a problem. How does one have a pint of beer in a wine glass?

Please explain how this creates a so-called 'problem?'

If person "A" pumps 24.5 gallons of fuel into the fill hole of their vehicle, they have 24.5 gallons of fuel to burn, thereby extending their range an extra 30+ miles (assuming you get 20 or more mpg) before they will need to make another fuel stop. For somebody that runs their tank down quite low, this could mean the difference between making it to the gas station under the vehicle's power or walking/pushing it in.

Don't just say it creates a problem without factual evidence. Prove it.

I'm not trying to be an ass; I'm just trying to make a point that you shouldn't go off making generalized assumptions without evidence to back it up.

I've been topping off cars for YEARS without a single problem. My parents have been doing it for many years as well without any problems on any vehicles they've ever owned. Three of their vehicles are year 2000 models with OBD-II systems as well.

I've owned 4 OBD-II cars and a LOT of OBD-0 and several OBD-I cars; all of which were the same -- never a problem with topping up. Yeah, some cars are easier to top up than others, but that's a function of the design of the filler neck and fuel tank.

Ricky
 
1.5 gallons is alot of liquid for a filler neck to hold I doubt thats where it went.
 
I would not recommend to overfill the gas tank on the new 4Runner. As part of its emissions equipment it actually has a charcoal canister that traps fumes from the tank and still allows the tank to breathe. WHen you overfill your gas tank you will invariably get actual gas into the canister itself. I think it is detialed in the owners manual or I read it in the Factory repair manual.

Once you start getting actual gas and not fumes in the charcoal canister it will deminish its capability to trap fumes. This can eventually lead to a permanent CEL coming on. Same as when you leave the gas cap open.

So to those who consistently overfill, keep doing it on the 4R. FIll it up till you see the gas in the neck and let us know what it does in a years time.

The intake system also has a charcoal filter behind the air filter now to trap intake fumes. Once the ehinge is statred these fumes are just cycled through the combustion chamber itself.

It is just all little things to reduce pollution by vehicles.

And yes you can get more gas in the tank than 23 gal. I have manged up to 23.5 before the pump stopped by itself. Most manufacturers leave extra breathing room in the tank to allow for expansion, avoid gas leaks in accidents, etc.

FOr some reason even when the trip says less than 10 miles these days and the light has been on for the last 20 or so miles I can only get 20gal in max. Maybe my tank got smaller or the meters just are off a bit more these days.
 
All i'm saying is a 23g tank can't hold 24.5g of gasoline. Just wondering where the other 1.5g went.

If the pump clicks.. and you want to put more gas in.. be my guest. I've always stopped pumping when it clicks because I've heard that overflowing it can be bad for the car.
 
iFORCE said:
All i'm saying is a 23g tank can't hold 24.5g of gasoline. Just wondering where the other 1.5g went.

If the pump clicks.. and you want to put more gas in.. be my guest. I've always stopped pumping when it clicks because I've heard that overflowing it can be bad for the car.

:iagree:

The advantage of overfilling gets you 20-40 more miles? whooptiefreakingdoo.... :driving:
 
Isn't there an overflow valve of some sort that will expel the excess gas out and under the vehicle if it is too full? If so, wouldn't the gas in the filler tube spill over if the driver takes a relatively sharp turp shortly after topping off the tank. For that reason, I never top off the tank completely. Although my buddy with a 2nd Gen 4R does it all the time and he has never had any problem. I would assume there should be an overflow valve/opening of some sort. I was pumping gas into my other vehicle once and the damn gas nozzle was broken and didn't automatically stop once the tank was full causing gas to gush out under the vehicle. Luckily it didn't come out over the top of the filler tube opening.
 
bulldog-yota said:
Once you start getting actual gas and not fumes in the charcoal canister it will deminish its capability to trap fumes. This can eventually lead to a permanent CEL coming on. Same as when you leave the gas cap open.

So to those who consistently overfill, keep doing it on the 4R. FIll it up till you see the gas in the neck and let us know what it does in a years time.

Well, I just did half a year's worth of driving and fillups (6000 miles worth) in 2.5 weeks with no negative impact from it.

Ricky
 
I guess the real question is: what mechanism shuts a fuel pump nozzle off? And then: where exactly is the liquid level of the gasoline at this point in time?
 
There you go again, thinking in logical terms.

iFORCE said:
It really doens't matter if the trip computer says 0 or 100 miles left. If the gas tank only holds 23 gallons.. then putting 24.5 gallons creates a problem. How does one have a pint of beer in a wine glass?

Salesman shows you invoice and says "I'm selling this to you at COST and I'm not making any money on this deal." And you say, thinking logically, "Well there's no need to sell at cost. It would only be fair to sell it to me at a fair profit so why don't I buy it from you at $1,500 OVER your invoice."

Or look at it this way.....as you tell your hot date about "manhood"....It all depends on where you start "measuring"....:arrow:
 

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