May 4, 2013 #1 K kyle Member Joined May 15, 2008 Messages 939 Reaction score 0 Points 16 I have a 1987 GMC s15 and am trying to figure out if my gas mileage is right. What is the original size of the gas tank on the regular cab s15.
I have a 1987 GMC s15 and am trying to figure out if my gas mileage is right. What is the original size of the gas tank on the regular cab s15.
May 7, 2013 #2 P Paul Member Joined May 13, 2008 Messages 880 Reaction score 0 Points 16 20 GALLONS/76 LITERS