TimAT Addict, Cruise-In Bird-Run 1 Veteran Joined Mar 24, 2008 Messages 1,969 Location Gladstone, Missouri Oct 29, 2012 #21 Measure the tank, calculate the volume. 231 cubic inches in a gallon. I keep a broomstick in my pickup for the aux tank- even though it has a gauge, I like to know exactly. On that one, 1 inch is 7 gallons.
Measure the tank, calculate the volume. 231 cubic inches in a gallon. I keep a broomstick in my pickup for the aux tank- even though it has a gauge, I like to know exactly. On that one, 1 inch is 7 gallons.