Reviewed By Jason S (New York, NY) Reviewed for a 2008 Mercury Mariner —8/11/2009 12:00 AM
I was skeptical (even having used K&N's before) but my Mariner hybrid is currently averaging 35.1 mpg on the first full tank after a air filter and oil change. That's 270 miles of mixed highway and city driving. I don't feel any more power, but the mpg improvement is significant. With the stock air filter I never got above 32mpg. Two thumbs enthusiastically up.