Reviewed By Joan P (Milwaukee, WI) Reviewed for a 2007 Mercury Mountaineer —4/15/2009 4:04 PM
Looks like it has increased my MPG's by 2. I was averaging 9.7 MPG's in the city. I now am averaging 11.7 MPG's. Now if only I could only convince the EPA to let us use real gasoline instead of a pathetic mixture it would increase by 3 more MPG's.