QA

How Often Should I Clean My K&N Air Filter

K&N drop-in replacement High-Flow Air Filters™ typically require servicing once every 50,000 miles under normal highway driving conditions, and the larger filters included with K&N intake systems can go up to 100,000 miles before needing to be cleaned (under normal highway driving conditions).

How often should I wash my K&N air filter?

The general rule of thumb is that the filter needs to be cleaned when the dirt build up gets as thick as the wire mesh. The usual interval is 30,000 – 50,000 miles depending on driving conditions. We recommend that you check your filter about once a year in normal usage.

How long does a K&N air filter last?

K&N High-Flow Air Filters™ are designed to last for the life of your vehicle, and are protected by a Million-Mile Limited Warranty. With normal use, they can go up to 50,000 miles before a cleaning is needed (the larger conical filters included with K&N intake systems can go up to 100,000 miles between services).

Do you oil both sides of a K&N air filter?

When using the air filter oil squeeze bottle found in K&N® filter cleaning kit 99-5050, apply K&N air filter oil evenly along the crown of each pleat. Allow the oil to wick for approximately 20 minutes, and then touch up any light areas on either side of filter until there is a uniform red color on all areas.

What happens if I don’t oil my K&N filter?

K&N filter elements have larger holes than stock air filters to allow more air through. The trade off is that without the oil, those larger holes would let in more dust type particles which, as anyone who knows engines will tell you, is not good for the engine.

Can K&N filter damage engine?

K&N filters will not damage the engine internals but they can damage or at least coat the Mass Air Flow sensor if your car has one and most cars now do. The oil that the K&N filter is soaked in can separate and contaminate the wires of the MAF.

Will a K&N filter improve gas mileage?

Yes, K&N air filters can increase your gas mileage. High-flow air filters feed clean air to your engine, helping it burn fuel more efficiently, which enables you to save money at the pump.

How many horsepower does K&N filter add?

So if you can get cooler air into your engine, your car will be able to mix more fuel with that air, making more power. Combine that with the more air through the larger and less restrictive filter and intake tube and you can see up to a 10-15 horsepower increase.

Are K&N filters worth it?

Fitting a K&N high flow air filter is the easiest, most cost-effective, and least technical way of increasing engine performance. K&N filters are worth it, they’re reusable and come with a 10 year or one million-mile warranty.

Can you over oil a K&N filter?

MAF Sensors and K&N Filters If over-oiled, the oil can end up on the sensitive wires of the MAF and cause it to incorrectly measure air consumption. This can lead to a check engine light and to lean air/fuel mixtures.

How long does K&N oil take to dry?

STEP 4 – DRY After rinsing, gently shake off excess water. Allow filter to dry naturally for 20-30 minutes. The filter does not need to be completely dry and can be slightly damp before moving to the next step.

Should I oil the inside of my air filter?

Remember to liberally apply oil to the filter. The oil’s purpose is to prevent dirt and debris from passing through. Failing to use enough oil is counterproductive to the filter’s job. Make you’re using application specific cleaner and oil for your air filters.

Can you put too much oil on air filter?

Too much oil will restrict the airflow and cause rich running. May not hurt the engine, but will restrict power. You might consider not oiling the outer filter. Many do not oil the outer because dirt will be more likely to cake up on it.

What oil can I use on K&N filter?

What type of oil can you use with a K&N filter? K&N® oil filters are compatible with conventional, synthetic, and blended motor oils. K&N now offers premium full synthetic motor oil to pair with your oil filter for the ultimate filtration combination.

Can I use degreaser to clean K&N air filter?

The degreaser should be applied liberally to the filter. Warm soap water is a good way to use it. It’s okay to scrub it with your hand or a plastic bristle brush.

Can you use wd40 as air filter oil?

Quick answer – no, you should not use WD-40 to oil your air filter because they dry up too quickly and leave behind residue that could even block airflow. Always go for a proper air filter oil (squeeze bottle or spray).

Are K&N Filters better than stock?

A K&N filter will also last much longer than a stock filter but that doesn’t mean much if your engine is taking a beating every time you drive out with your car. It is much cheaper and easier to replace an air filter rather than the entire engine block.