Poor fuel mileage
2 Answers
There is so many ways this car was produced, 6 cyl, 8 cyl, auto, manual. but on an combined they got about 15 mile per gallon. Anyway I would a complete tune-up on the car this in includes PLUGS, WIRES, AIR FILTER, FUEL FILTER, BELTS, OIL CHANGE, MAKE SURE YOUR TIRES ARE INFLATED CORRECTLY. NEW THERMOSTAT AND COOLANT.
Pretty standard for your truck especially if you have the 460.