Reviewed By John K (Berrien Springs, MI) Reviewed for a 1997 Infiniti I30 —7/20/2012 5:24 AM
When I installed this filter I was expecting a marginal improvement on the gas mileage. I got it for the additional benefit of not having to buy another air filter. In reality, the gas mileage was much better than I expected. I would say I experienced about 15% to 20% saving thus far. This was a good purchase.