I have changed the spark plugs and the air filter. What more can I do to increase gas mileage
Tuesday, November 13th, 2012 AT 6:19 PM
1 Reply
DRCRANKNWRENCH
MECHANIC
3,380 POSTS
Change all the oxygen sensors as they determine how much gas is sent into the engine. Old oxygenb sensors can make a car run rich and therefore not get as good a gas mileage.