Gas Mileage
I have a 1999 Explorer, 6 cylinder Vin. X. I drive it to work mostly and gas mileage has varied from close to 17MPG and as bad as
10 MPG. It has new plugs, plug wires and fuel filter. It runs good. Why such a differance in MPG? I have Bosch plugs in it.
10 MPG. It has new plugs, plug wires and fuel filter. It runs good. Why such a differance in MPG? I have Bosch plugs in it.
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