Have original spark plugs in my 2009 Taurus with 129000 miles. Car runs good, gas mileage good. Should they be changed?
Runs good. Gas mileage okay. Should they be changed? Approximately what's an average charge to change plugs?
– Have original spark plugs in my 2009 Taurus with 129000 miles. Car runs good, gas mileage good. Should they be changed?