I have a 2006 jeep commander and want to improve the gas mileage, how effective would a cold air intake be? Is there anything else I can do, or is it just best left alone?
I don't have Commander specific experience, but do have a cold air intake on my Wrangler. There was no noticeable increase in power or fuel economy (I track my mileage pretty well). It does sound a little different (louder) at wide open throttle.