Not sure which 2005 Nissan Frontier Fuel Systems are right for you? We have over 1911 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Mario C Y from Pearl City, HI said, "Had it a few weeks on a 1999 Ford E250 4x4 van. Seemed to give a little more power and smoother engine performance. Don't notice the fuel to go as quickley as before, need a month or so more to get the exact mileage, but sure seems to have improved."