I know that the written fuel capacity of my 3.4 SR5 is 18.5gal, but is that untill the pump automatically shuts off, or untill the fuel starts coming up the neck? if not, what is the actual fuel capacity up untill the pump automatically shuts off? I have an ultragauge, and I want it to be as accurate as possible. plus i've always wondered.
ACTUAL fuel Capacity
- Thread starter e-caban
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not quiet the tank, but fuel neck included.
4-Ripcord
New member
potato potahtoe, run it empty and fill it up till it overflows and tell us what it says.
-fyi overfilling can cause the charcoal canister to go bad.
PNWRunner
New member
I can attest to that. I always overfilled on long trips and just last week started throwing p0446... Boo overfilling.
Did NOT know that, awesome to know! Explains why it happened to my dad twice, he insists on filling it till it overflows EVERY time.
Millerad1651
New member
I set my Ultragauge to 17 gallons. I read about the last gallon not being useable, so I just took it out of the equation. After 4 fill ups, the Ultragauge has been pretty accurate on MPGs and distance until empty.
Brian757
New member
I also wonder the same thing. Sometimes I can fill up to 17.5 gallons but that is my truck shutting off at turns to get to the gas station 
I guess I would go with what Ripcord would say. I usually hate seeing the low fuel light so I avoid it a lot. My fuel light comes on when Ive reahed around 250 miles, I drive mostly on the highway to work.
I guess I would go with what Ripcord would say. I usually hate seeing the low fuel light so I avoid it a lot. My fuel light comes on when Ive reahed around 250 miles, I drive mostly on the highway to work.
JasetheDamager
New member
This is one of those threads I've always wanted to start, but been too afraid to cuz I'd be torched and scolded for not using the "search function", so I'm glad somebody else did. I too have my Ultra-Gauge programmed at 18 gallons, so I'm going to change it to 17. Thanks.
cordrayj1
New member
do you live and work in a 5 mph speed zone retirement community? how the hell do you pull that mileage off
Millerad1651
New member
I can get close to 280 per tank...I could probably go a little further, but I don't want to run out.
Ugh, the best tank I've had so far is 220 miles... last one was 190 miles. Got a bit of city driving in there, but I try to take it easy on the pedal. The 220 was coming back from Seattle to Spokane, cruise control set at 68. Granted, I generally treat the gas light as the boss of when I get gas, but that seems to come on around 12 gallons down.
