I believe this car has denso iridium plugs When is the recommended tune up and would bosch fusion iridium give me better gas mileage and last longer? Manual claims tune up at 60k while denso plugs claim over 100k. No performance issues just ok gas mileage at about 20mpg on highway driving. Would like to get more. Claim is 22mpg on highway.
Tuesday, October 11th, 2011 AT 4:21 AM