Usually I never pump a full tank for some dumb reason. I believe that i dont drive as hard when i have a quarter tank of gas and i actually saved money on gas that way. but when i do fill up, usually on road trips. I will put as much as i can.

i used to top it off, when i had the green bonneville.

now i dont. my theory is that if i go until the machine stops every time, it gets roughly the same amount of gas each time. if fuel economy drops, its just another indicator for me.

Same here. I never seem to keep track of my debit card purchases so rounding off help me figure what I spend on fuel. I never top off, gas hates Candy paint. These days I refill at a half a tank empty so the cost doesnt floor me. Remember the dont get gas today campaign? That doesnt do anything. They know You are out burning fuel and will get it tomorrow. Instead pick on the biggest and we might get somewhere. Since Exxon/Mobil is the Largest thief, I no longer buy gas from them.

when gas prices were cheaper I would fill it up as far as it could go, but now that gas prices are high, as soon as that pump stops my wallet closes

Thanks to BC, I also no longer waste money on "Gas Saving" fuel additives even if it'* from a name brand like STP.

Rounded up to the nearest dollar after the click.

I top off, turn the nozzle and hose upside down and get the last few drops in the tank.

I alway round up to the next dollar (though I don't balance/keep track of it), but I always shut off the pump and squeeze the trigger to get the last drops out also

I'm guilty also

I don't turn the nozzle upside down though

I fill up til it pops, give it another squeeze til it pops the secondd time, and then stop. Ionly do that to make sure it'* completely full.

On the truck, though, you fill the tanks directly, no filler neck, so I take until the air being forced out of the cap starts to spray drops of diesel out of the filler, then stop.

Now that you guys are talking about it, I realize that as long as I've had my car, I've never had enough money to top off my tank :? .