Review on NGK 24255 Oxygen Sensor Packaging by Patrick Gibb

Unlike another lower quality oxygen sensor I purchased from Revain which was advertised as packaged in NGK/NTK packaging but actually arrived in a plastic bag, this product was in the advertised box packed. Also, it turned out to be an identical replacement sensor of the same quality as the OEM sensor it replaced. I had to return another one which turned out to be a lower quality imitation that was misrepresented as an OEM type. two exhaust manifolds) failed on my car. The engine ran fine but the odometer said about 115,000 miles and the oxygen sensors work in rough conditions so I figured it was about time. After giving the ECU a little time to adjust to the new data from the new oxygen sensors, the engine seemed to run a little smoother and fuel economy improved slightly.