Damn you guys get way better gas mileage than me. Right now im looking at 100 miles to a half of my tank. And I have a 20 gal tank...

 

the amount of fuel used to go from full to 3/4 is different than the amount of fuel used to go from 1/2 to 1/4, due to tank shape, the arc of the float arm etc. also if you redline a truck/car or bog the rpms (shift too low) then you will burn through some fuel. Go out and do some breakneck mudding high rpms 1st and second gear etc. Ive made 4 bangers burn through fuel faster than some 8's