How much does one gallon of oil weigh?

One gallon of oil is 6-8 pounds depending on density. If you assume SAE 10W-30 oil; density is 875 grasm/litre = 1.929 pounds per litre = 7.3 pounds per US gallon.
Assume SAE 10W-30 oil; density is 875 grasm/litre = 1.929 pounds per litre = 7.3 pounds per US gallon. Cheers Malcolm
at .9 grams/ milliliter, one gallon of oil weighs 3.4 kilograms