hondo, First off, is the spray specifically designed for foam filters? If it is, be sure the filter is completely covered with the red (if the spray is, in fact, red). Do not soak the filter or it will drip down into the air box and will starve the engine for air. Just spray it on evenly and kneed it in while it is in a Zip-Lock bag or use disposable gloves to thoroughly cover the entire filter. That includes the inside. One thing you should remember is to use some good quality grease on the filter part that makes contact with the air duct so as to prevent dirt from getting into the engine. Note: If you use water soluble spray on the filter such as PJ1 you will need the solvent from PJ1 also to dissolve the spray when ready to clean the filter (water). Hope that helps. Sid
hondo, fraiolib is absolutely correct except for one item. The K&N filter is a fabric (cotton) material that does, in fact, require the K&N proprietary cleaner and oil. I have enclosed a web site with a look at the materials used to service those filters along with some information on the "how-to" for them. Sid http://store.knfilters.com/clningins.htm
fraiolib, If the filter has red material on it, it is probably pre-oiled. If it has oil on it already the packaging will have signs of it. Most likely it was wrapped in plastic or cellophane so there shouldn't be any problem recognizing the oil. If you are really concerned go ahead and spray it, as shown on the web site with a THIN film of fresh K&N oil. Sid
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