Gas Miliage !
I have a 2007 F-150 FX4 and I was wandering if any one knows of anything that you can do to increase the Fuel Miliage on it? It has the 5.4 liter engine with the 3 valves per cylinder in it. I have already put a AirRad filter Kit in it and it has not seemed to help in fact I think it may have decreased the fuel MPG..
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