I just got my old liscence, and my stupid fucking dad is too cheap to buy me a new car and gave me the 94 Cherokee with like 150,000 miles on it. It has so many problems, but one of them is the gas meter. The gas meter fluctuates...wildly. I mean, one second if I'm hitting the gas the gas light goes on, and if I'm coasting, the meter rises to a quarter tank. I really have no idea how much gas I have, and I'm wondering whether I should buy gas when the light goes on, or if I actually have a quarter tank.