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A: Ron Joseph of the Paint and Coatings Resource Center estimates that a gallon of paint weighs roughly 10 pounds. To determine approximately how much 5 gallons of paint weighs, multiply 10 pounds by 5 to get 50 pounds of paint per 5-gallon bucket.
But a google search found this line: One gallon of oil weighs 3.26 kilograms You should be able to run from there. 3.26 kilograms / gallon times 2.2 pounds per killogram yields 7.17 pounds per gallon. 7.17 pounds / gallon times 26,632 gallons is 190951.44 pounds. Dividing by 2000 pounds / ton = 95 tons.