If every diesel vehicle in the U.S. converted to using 20% Bio-diesel how many gallons of diesel can we save?

Answer 1

The US uses about 3000 barrels of diesel per day, so 20% would be 600 barrels per day. One barrel of oil is 42 gallons so that would be 25,200 gallons per day.

However there is another definition of a barrel (not of oil). It is only 31.5 gallons and I am not sure which kind of barrel is used to measure diesel. However, diesel is also called diesel oil, so I'll stick with the 42 gallons.

Answer 2

The exact number would be impossible to figure out since we do not know the exact number of cars in United states. But I can say for sure that it would save a lot of diesel.