How many MPB (miles per bar)?

[33OH]

If you're like me and keep fueling even AFTER the gas pumper clicks that its full, yeah you'll get more miles on that first bar.

[Forrest]

Originally Posted by ryank

If you're like me and keep fueling even AFTER the gas pumper clicks that its full, yeah you'll get more miles on that first bar.

There is a warning on the gas cap not to try and fill once a pump has clicked off. Something about check engine light may come on.
Also, bars are a rough indication of gas usage, but not totally accurate.

[1stToyota]

Originally Posted by Forrest

There is a warning on the gas cap not to try and fill once a pump has clicked off. Something about check engine light may come on.
Also, bars are a rough indication of gas usage, but not totally accurate.

My cap says tighten 1-click or check engine light may come on; EVAP leak.

[Krusher]

The reason for not overfilling the tank after the auto-shutoff is due to getting liquid into your EVAP canister(s)... Those are expensive and only suppose to see vapor... but it's like a 10% chance you'll end up screwing the canister up one fill-up... not a big risk and you won't see it happen very often.

I don't fill beyond the auto-shutoff....

[firebird1999us]

About 80 on the first bar, 70 second, and about 60 for the next few. I'm at the bar that tops out right at half a tank and I've went about 250+ miles so far...about 90% highway

[Tonavi]

I had one of those gas pumps that took 20 minutes + to fill the tank, but the bonus was that the tank gets wayyy topped off. I mean, you could see the gas inside the filler, that's how full it was.

It paid off, too, as I saw my record MPB. I got 112 off of the first bar (no joke), and was at 166 when it went down again.

[ecnal]

I got 82 on my first bar today! This is the first tank that I have filled. I consider a tank to be from full (pump click +to the next dollar) until the last bar starts to blink.

[scape]

I was riding with my Dad in his pickup truck and he said "We'd better get some gas-the gas guage is almost down to 'P'".

"P?", I asked. "What does that mean?"

"Pedestrian!" he replied. ***

lol!

[Kaotic Lazagna]

I think the bars aren't all the same because the gas tank is not a perfect cube. For me:

First bar: 70-90
Second bar: 117-135
Third bar: 170-200
Fourth bar: 210-250

I generally fill up at half tank, but I've reached a "quarter" tank left at 335.

*numbers are what is shown on the trip meter, not of individual miles per bar. If you want that, do the math. LOL.

[1stToyota]

Originally Posted by Krusher

The reason for not overfilling the tank after the auto-shutoff is due to getting liquid into your EVAP canister(s)... Those are expensive and only suppose to see vapor... but it's like a 10% chance you'll end up screwing the canister up one fill-up... not a big risk and you won't see it happen very often.

I don't fill beyond the auto-shutoff....

The gas cap says "Tighten" 1-click (not "fill" to 1-click) because if you don't click it the fuel tank pressure sensor voltage will read high and the PCM will assume that someone is driving around with a loosened or removed gas cap.

[Krusher]

Originally Posted by 1stToyota

The gas cap says "Tighten" 1-click (not "fill" to 1-click) because if you don't click it the fuel tank pressure sensor voltage will read high and the PCM will assume that someone is driving around with a loosened or removed gas cap.

Ok, time to dumb it down a bit... the CEL comes on for more than just the gas cap being off... or loose.

When the ECM goes into self-check it will run the evap system... if the pressures/volts do not fall within a specified range then the CEL will trip.

The gas cap not being installed or being loose has nothing to do with the evap canister... which can become soaked with fuel when topping off. This also has the potential to trip the CEL. Odds? Probably 1 in a million (est) cars will end up having to prematurely replace the canister due to overfilling.

Lesson? Read the entire post before commenting... and don't top off your tank... that extra squirt or 2 is not worth the cost of a new evap canister.

[1stToyota]

Originally Posted by Krusher

Ok, time to dumb it down a bit... the CEL comes on for more than just the gas cap being off... or loose.

Yeah, we'll dumb it way down. The cap reads "Tighten 1-click" or PCM may trip a code, not "Fill until nozzle clicks once"

When the ECM goes into self-check it will run the evap system... if the pressures/volts do not fall within a specified range then the CEL will trip.

MIL

The gas cap not being installed or being loose has nothing to do with the evap canister...

Evap **system**...How do you expect the fuel pressure sensor to read right with a loose or malfunctioning fuel cap? Out of spec readings = PCM storing a code. Cap warning is all about the cap being tight and has nothing to do with fuel top-off.

which can become soaked with fuel when topping off.

How?

Fuel filler pipe and vent has nothing to do with the cansiter, vent and purge solenoids, or EVAP hoses and lines. When you're filling the tank the filler tube and vent go straight into the tank, they don't spill over to other components. Most filler pipes/hoses now have the vent hose built within the filler hose itself, older designs had the vent hose opening up near the top of the filler pipe, but the vent hose still dumped into the fuel tank, about 2-3 inches from the filler hose inlet at the tank.

This also has the potential to trip the CEL. Odds? Probably 1 in a million (est) cars will end up having to prematurely replace the canister due to overfilling.

Overfilling will soil your pants or shoes, it won't run down the vent tube into the canister, especially when most of those canisters are at the other end of the vehicle and the hoses and/or canisters are above the tank level.

If overfilling ruined the EVAP system then I guess there would be warnings about never parking a vehicle on a slope.

Lesson? Read the entire post before commenting... and don't top off your tank... that extra squirt or 2 is not worth the cost of a new evap canister.

Lesson: Read your cap. The instructions are simple enough to follow.

Canisters get damaged while the car is running, running improperly and a faulty EVAP system, has nothing to do with topping off a fuel tank.