Common questions

Do new air filters need to be oiled?

Do new air filters need to be oiled?

K&N automotive replacement air filters can go up to 50,000 miles, under normal driving conditions, before air filter cleaning and re-oiling is necessary.

Why are oiled air filters bad?

You may have also heard that oiled filters can damage your mass airflow sensor (MAF). If there is too much oil on the filter, some of it can get sucked in through the cotton gauze and damage the MAF sensor. This is where you must be careful and follow the instructions on how to clean your oiled filter.

Why is oil coming out of my air cleaner?

Check out the article, Understanding Blowby in Motorcycle Engines, from MotorcycleCruiser.com. It explains why you had oil pumping out if your air cleaner assembly. The only other reason for this to happen can be from a broken oil pump or overfilling, as you mentioned. I have the same problem, and yes, my filter does need to be cleaned.

Why is oil dripping from my Harley air cleaner?

Same problem on a 2012 ultra.tried running low oil didn’t work just junk harley internal parts. Don’t blow out with compressed air! You will ruin the element. Shake the filter and them let it air dry. Phooey… As long as it’s not high pressure, keep it to 10-15 psi, it’s fine.

How is oil captured in an air filter?

The air inside a motor is saturated with oil. It exits through the breather bolts and into the air box where the air is filtered and the oil is captured in the air filter. A larger motor or a built motor will, typically, breath heavier.

What are the problems with oil bath air filters?

The first problem comes with using the wrong weight oil. Use of oil that is too light will cause the oil to be drawn beyond the filter and into the engine. Use of oil that is too heavy will not allow the oil to be drawn up far enough and much of the air cleaning surface area ends up being unused.

What causes engine oil to blow by into the air filter box?

If any cylinder tests low squirt a small amount of oil or transmission fluid into the corresponding spark plug hole and perform the test again. If the compression raises after applying oil then the piston ring for that cylinder is bad and is likely the cause of the oil blow-by. Repairing Internal Problems

Is it bad to add alcohol to air filter oil?

Adding alcohol is troublesome, because it classifies the oil as hazardous material. This complicates shipping, storage and exporting. Alcohol also eats the cheaper glue on some filters. As an alternative thinner, No-Toil developed an oil that’s temporarily bonded to water, eliminating the need for alcohol. The drawback is a longer evaporating time.

Why does air filter oil pool in airbox?

The problem is that motor oil pools in the airbox, distributes itself unevenly and can be sucked through the intake tract. Air filter oil has special additives blended with the oil to solve these problems.

Author Image
Ruth Doyle