DOE study).
Purolator A40004 PurolatorONE Advanced Air Filter Changing your air filter regularly is an easy way to keep your engine running at peak performance. Purolator A40004 PurolatorONE Advanced Air Filter - Replacing an air filter every 12 months or 12,000 miles can have a significant impact on engine performance and efficiency. PurolatorONE Air Filters trap up to 99% of dirt, dust, soot and other debris, helping to protect your engine from damage. A new air filter can also help prevent engine wear, improve fuel efficiency and can even improve acceleration by up to 11% (U.