May 4, 2013 #1 K kyle Member May 15, 2008 939 0 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.