You recommend to replace the air filter every 12,000 to 15,000 miles. What is your opinion on the K & N air filter for this model car that says it doesn't need cleaning for 50,000 miles and then it can be cleaned and re-oiled?
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2006 Toyota Avalon Question: Air Filter
Answer #1patrick mannion from Greg Solow's Engine Room, April 06, 2009, 20:22Master
I like KNN filters on cars that we race but for street cars I don't know if there is value/performance gain. I inspect and blow out my own air filters when I change my oil and replace them when they are dirty or every 15 to 18000 miles.
Modern cars are very sensitive. There was a rash of air flow meter problems with several makes of cars. The car manufactures tried to pin blame on aftermarket air filters an in particular the KNN air filter replacements. Lots of talk on several car club websites. It depends on who's propaganda you want to believe.
I'd say stick with the stock filter inspect/blow it out periodically, replace when dirty and remove debris from air filter housing as required.
ReplyVisitor, December 14, 2010, 10:57
You state 15 to 18000 miles on air filter changes BUT Toyota says 30,000 miles. I believe you are correct, after a trip to Florida & back 2700 miles my MPG went from 35 on the highway, down to 18 MPG. I also agree the K&N is not for regular street cars unless you plan to keep it fo 10 years or more to get back your $50, instead of the usual $15 for a regular filter.