1987 Ford F-250 4x4 diesel with dual fuel tanks how many gallons will the hold?
A 1987 Ford F-250 with dual fuel tanks likely has two 20-gallon tanks. Therefore, the total capacity would be approximately 40 gallons. However, this is an estimate. The exact capacity could vary slightly depending on options and manufacturing tolerances. To be certain, check your owner's manual or the sticker inside the fuel door.