as full as it gets ( gas pump )

DMC91187

DMC91187

New member
My buddy has an FJ & when getting gas after the pump stops itself he pulls the nozzle out and keeps fueling until he can see the gas in the cup/hole for the nozzle.....says he fits 3 more gallons in by doing so & that he has done it with all his cars .....I'm def. Not an expert or as savi as he is about cars ....but I was thinking ....its gotta stop for a reason right??? Does anybody know if this could cause problems or is it not a big deal?? I mean I know everybody squeezes a bit more in after the pump stops but not like that usually..we could do the same thing because of the angle of the cup/hole but I don't wanna be doing it untill I hear some more opinions
 
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Topping off $$

Did this on the is300 & it ended up costing me 900$ , because there's a sensor on top of tank zapped it out threw p0440 cel so now when the pump kicks off I just round it off to even money & stop !!
 
Yes, you don't want to do this on a modern vehicle. Fuel can go down the vent line, like the others are saying.

-E
 
My bad experience with my past 1993 Explorer was flooding. Stalling after topping off vs stopping as pump indicated in Tx in 100 degree + weather. I noticed that my truck dropped dead after over topping on 100 degree days (at the next close freeway exit). I was warned of the fuel’s expansion and stopped topping and the dropping dead was solved.
 
My bad experience with my past 1993 Explorer was flooding. Stalling after topping off vs stopping as pump indicated in Tx in 100 degree + weather.

I noticed that my truck dropped dead after over topping on 100 degree days (at the next close freeway exit). I was warned of the fuel’s expansion and stopped topping and the dropping dead was solved.
 
All the above not withstanding:

I have a 2004 Tundra that always pops early. Without fail, I put exactly two more gallons into that tank every time I fill it. I've owned it since new and now pushing 200k mi. Never failed emissions, never thrown related CEL codes. :shrug:
 
DMC91187 said:
keeps fueling until he can see the gas in the cup/hole for the nozzle.....says he fits 3 more gallons in by doing so & that he has done it with all his cars .....I'm def. Not an expert or as savi as he is about cars ....but I was thinking ....its gotta stop for a reason right???
Click to expand...

I do believe there's some truth to that fact that the fuel with foam a bit when fueling which can build up and prematurely stop the pump. So I don't see an issue with squeezing a bit more in but filling it until you see fuel is a bit excessive.

I'd like to see what happened if he filled it like that in the winter and then immediately pulled into a garage and it warmed up. It would probably look something like this:
Blown+up+Toyota+FJ+Cruiser+1.jpg

(Well maybe not quite but you get the picture lol)
 
TRDCal said:
I'd like to see what happened if he filled it like that in the winter and then immediately pulled into a garage and it warmed up. It would probably look something like this
Click to expand...


lol yea we live in Va Beach so winters are pretty mild...but maybe its a good thing he cant fit in his garage lol
 
jdkilroy said:
All the above not withstanding:

I have a 2004 Tundra that always pops early. Without fail, I put exactly two more gallons into that tank every time I fill it. I've owned it since new and now pushing 200k mi. Never failed emissions, never thrown related CEL codes. :shrug:
Click to expand...

yea his FJ is an 07 & he also drives a 95 or 96 bmw m3 and as far as i know has done it to that too with no issues (so far atleast)
 
jdkilroy said:
Without fail, I put exactly two more gallons into that tank every time I fill it. I've owned it since new and now pushing 200k mi. Never failed emissions, never thrown related CEL codes. :shrug:
Click to expand...

DMC91187 said:
yea his FJ is an 07 & he also drives a 95 or 96 bmw m3 and as far as i know has done it to that too with no issues (so far atleast)
Click to expand...

It all depends on where your charcoal canister is located in relation to the gas tank. If the fuel level is never at a higher point then the canister then you won't have an issue and you can overfill till the cows come home, but if it does go higher (ie: up the filler neck on a car with a low mounted canister) then gravity will work its magic and fuel will flow through the vent line and fill the canister.
 
I've been topping off for the last 100k on this runner and 140k on a silverado I just sold with no issues. The pumps are not really close to my house so I do have to drive a bit before it gets parked. Finding wood to knock on after typing this.
 
TRDCal said:
I do believe there's some truth to that fact that the fuel with foam a bit when fueling which can build up and prematurely stop the pump. So I don't see an issue with squeezing a bit more in but filling it until you see fuel is a bit excessive.

I'd like to see what happened if he filled it like that in the winter and then immediately pulled into a garage and it warmed up. It would probably look something like this:
Blown+up+Toyota+FJ+Cruiser+1.jpg

(Well maybe not quite but you get the picture lol)
Click to expand...
That was improperly stored welding gas.
 
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