Gas is heavy, I always tell ppl, why I only ever fill up half way. On a 10 gallon tank, that's saving like 50 pounds.

This thread made me finally get my facts straight, I was going off of a gallon of milk which is ~8 lbs.

I found a link that says:
water:8.3 lbs
gas: 5.6 lbs.

Well, be never filing above halfway, still says me 25lbs.

And if I was hardcore like civicsiracer, who only fills to 1/8 tank, I could save another 10 lbs.

-PHiZ