I was geting +- 25 mpg before I did the full tune up. Right after I am geting only 17 mpg. I replaced; Oil, oil filter, gas filter, spark plugs and wires, air filter and coolant.
Any one knows what I did wrong?
A forum community dedicated to Ford Mustang owners and enthusiasts. Come join the discussion about performance, builds, modifications, reviews, engine swaps, classifieds, troubleshooting, maintenance, and more!