K & N Air Filter

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Author Message   Dee Posted on Sunday, July 21, 2002 - 04:29 pm:    For those who are intrested, some information on the K & N Filters Not getting into a debate with the pros and cons of K & N filters, I was reading the lables on the box and actualy read the warranty disclaimer. Q - Will the use of a K&N filter void my factory warranty? Ans. - It is against the law for a manufacturer to require the use of a specific brand of air filter unless they are providing it free of charge under the terms of the warranty. This is stated in the Magnuson-Moss Warranty Act and the general principles of the Federal Trade Commission. The customer may use any brand of filter they like if the dealership is not providing filters free of charge as part of the warranty. This does not hold true for fleets or government agencies. Also about the claims aginst MAS faliures Q - Will a K&N filter cause my vehicle�s mass air sensor to fail? ANs. - No. A properly oiled K&N filter will not contaminate a mass air sensor. However, if you over oil your filter it is possible for oil to drip off the filter and contaminate the sensor. In the last few years certain vehicles have had design problems with the mass air sensors. Some local dealers have attempted to blame the problem on a K&N filter, however, of all the sensors we have sent off to be tested we have yet to find one that failed due to oil contamination. The defect in all cases was within the mass air sensor unit. If oil were to contaminate the sensor�s �hot wire�, the wire itself could be cleaned, however if there were a problem with internal circuitry the sensor would have to be replaced.   bryan Posted on Sunday, July 21, 2002 - 05:34 pm:    I installed mine right out of the box (9K miles ago), so I assume that it was oiled properly at the factory. Earlier this month I had some problems with my 95 DI, and the local mechanic said that I should get rid of the K&N because my MAF sensor was coated with oil (FYI, the MAF was not the source of the problem, it was a POS BA rotor). I wonder if cleaning the filter and applying less oil will prevent future oil buildup on the MAF. I'd hate to toss $45 down the drain by throwing the K&N out the window and using $20 paper filters, but it would be cheaper than $500 for a new MAF.