What's cheaper than gas?

What's cheaper than gas? [+ favourites]

Ok you have to post one liquid that is cheaper to fill your tank up than gas.

It's cheaper to fill my car up with milk as oppose to gas...

"I love to see people struggling for their purpose in life..."

Semen.

"Hating everyone protects me from elitism."

Urine!

It could run for miles.

Milk is $3.50/gal at Publix; gas is less than $3...

water.... lol

"How on earth are you ever going to explain in terms of chemistry and physics so important a biological phenomenon as first love?"

In Canada for one litre of gas it is about 1.10. For a 4 litre of milk it's about 3.50.

"I love to see people struggling for their purpose in life..."

chip fat

surely that would hurt though decius, thinkg 4+ gallons to fill a petrol tank.

"So Schrodinger's Cat is not only neither dead nor alive, but might also be sexually aroused by elbows and peanut butter?"