Oil filters are devices that remove impurities from the engine oil, lubricating oil, transmission oil or hydraulic oil. As a preventative measure, oil filters should be replaced every time the oil is being changed. You should never reuse an oil filter. It may save you a few dollars in the short run, but will cause you more problems in the long run if you reuse oil filters. However, depending on your driving conditions, you might have to replace the oil and filter sooner. Some signs that it may be time to replace your oil filter is your vehicle is sputtering, your oil pressure is dropping, or you may have a dirty exhaust. Oil changes with oil filter replacements should be done regularly as part of performing regular maintenance on your vehicle. A clogged oil filter will not filter out the impurities in your oil like a new oil filter will. Dirty oil in your engine causes problems in the long run. Once the time to replace your oil filter comes, be sure to select OEM parts. As OEM oil filters are the same ones your vehicle came with, they can remove debris from the oil flawlessly and last longer. We have a great selection of genuine OEM oil filters here at Infiniti Parts Net. Find the oil filter you need for your specific Infiniti vehicle here below for your next oil change!