Through an automated production process, we offer quality oil filters individually tested for leakage and randomly tested for pressure burst. This is one the most competitive categories in the aftermarket industry, where it becomes challenging to be able to deliver a quality product, yet sustain a competitive cost structure. We have capitalized on partnerships with our manufacturers by combining our buying power to source quality raw materials, while keeping our cost low. In order to properly maintain your engine's efficiency and longevity oil and oil filter should be changed every 3,000 - 5,000 miles or as recommended by the vehicle's manufacturer. The oil filter keeps the oil clean from abrasive contaminants that can shorten the life of the engine.