• Reviews around filter (3.91 of 5)

    K&N Air Filter Oil: 12.25 Oz Aerosol; Restore Engine Air Filter Performance and Efficiency, 99-0516

    • Now my nice open element filter is PINK when I need it to be
    • Clean your MAF Sensor each time you clean your filter for a boost of power and smooth idle.
    • Highly recommend for K&N filters, much easier to use.
    • Refreshed my KN filter and made it look and work like new
    • The job of the K&N spray oil is to insure long life and good filtering qualities from your *intially* expensive air intake filter
    • Truck is running well and the filter is catching dirt.
    • Much easier to clean the filter with the K&N than the stock honda filter lube.
    • really nice when you clean 7-8 filters after each race
    • Helps the filter get all the dust
    • It's way better than regularly throwing expensive single use filters in the trash.
    • I clean the air filter twice a year, no problems with this product.
    • The modern OEM industry standard air filters are an insult to the trade (I am a retired HVAC service tech.
    • Great for recharging K&N filter.
    • I live in the high desert and have to clean the air filter frequently, so I appreciate the ease of use with the K&N filter oil.
    • Very simple to use re-oiling after cleaning filter
    • bought motorcycle with K&N filter already installed, so I wanted to use the recommended filter oil.
    • I highly recommend the Filter, the Oil and Cleaner to those who need an extra level of protection from dust and debris.
    • You need to allow adequate time for the filter to air dry, and don't forget to clean your filter before applying.
    • To my surprise, it didn't work and only ended up making the filter a mess and permanently discoloring my filter
    • When I removed a new clean paper Fram filter and put the K&N in, I took it for a road test
    • K&n filters are great to add hp and gas mileage need this and cleaner to recharge filter
    • so if K&N says their filters need magical filter oil, then by gosh, I'll use it!
    • The filters are expensive so you should use the proper cleaner
    • A great air filter by K&N deserves the same quality of products to be used with the original.
    • , WIPE off the excess on the side from spraying (if you got the spray type oils, i did), do no OVER oil it, as long as it turns red, no white, you're goodthe oil restored my filter to its original glory, good as newtip: keep your old filter around, always, in case you need to drive while your filter is air drying, recommended !!
    • Keeps the filter on the TZR oiled up nice
    • , you might damage the filter, then when you are SURE you cleaned the cleaner off the filter completely with water, let it air dry, dont not blow dry, air dry only, when it dried
    • The original kit I purchased had the squeeze bottle for applying oil to the cleaned filter.
    • Great k and n filter oil for a great price
    • WRONG!!clean it every 10,000-15,000i cleaned mine at 10,000 because it seems like my MPG was getting lower than usual, took it out, sprayed generously with the cleaner, and ran water through it from the side where its clean to flush out the dirt on the other side, no high pressure water or you will damage the filter, if there is any debris left in there, use something really thin to fish it out, nothing sharp, didn't try vacuum
    • Perfect for oiling any reusable filter
    • you will want a can of this to re apply after cleaning filter
    • I used the K&N 99-0621 Air Filter Cleaner and Degreaser to clean my K&N CAI filter for my 2002 Mustang
    • Great filters that when maintained, one filter will last as long as the car will last
    • Can be used on any cotton filter - great for refreshing old filters for new use!
    • I needed to clean and re-oil my k&n filter and this did the trick without me having to buy the whole kit that has more cleaner that I didn't need.
    • Dusty Arizona requires many filter cleaning and filter oil
    • It case out and it worked and now my filter is clean
    • Filter is like brand new all over again.
    • needed for my K&N filter easy to use, just spray a light
    • The biggest advantage of the K&N is air flow after the filter gets dirty with use
    • You will really need this if you are using a re usable type air filter