How often should I clean and re-oil my K&N air filter?

Depending on your driving conditions, K&N recommends cleaning and re-oiling your filter every 50,000 miles. If you drive in dusty or off-road conditions, you may need to clean it more frequently.

What do I need to clean and re-oil my K&N air filter?

You'll need a K&N filter cleaning solution and K&N filter oil. These are designed to work together to clean the filter without damaging the cotton fibers and to properly re-oil the filter for optimal performance.

Does this filter come pre-oiled?

Yes, this K&N filter comes pre-oiled from the factory and ready to install. You don't need to oil it before its first use. Just install it and go.

K&N E-3212 Air Filter | Round, Washable

Name: K&N Custom Air Filter Round 5-7/8in OD x 4-7/8in ID x 1.4/5in H
Brand: K&N
SKU: k-n-engineering-k-n-custom-air-filter-round-5-7-8in-od-x-4-7-8in-id-x-1-4-5in-h-t14-423399
Price: 49.72 USD
Availability: InStock

K&N Custom Air Filter Round 5-7/8in OD x 4-7/8in ID x 1.4/5in H

$49.72

Only 7 left in stock

Washable and reusable round air filter. Designed to boost airflow and trap contaminants.

Key Features

Washable — clean and re-oil for extended use
Reusable — lasts the life of your vehicle
High-flow design — improved airflow over paper filters

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10-Year/Million Mile Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's No-Hassle Lifetime Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!