K&N | High-Tack Cotton Air Filter Oil - Large Eco Gallon (1 Gallon / 3.785L)

Restore your performance air filter’s protective barrier and flow dynamic with the genuine K&N Air Filter Oil, now available in a bulk 1-gallon commercial size (3.785L). This specialized formula is the only approved compound chemically engineered to penetrate and saturate premium cotton gauze filter elements. Engineered with advanced high-tack properties, this oil creates a microscopic tacky grid within the cotton matrix, acting as an active trap for fine sand particles, road dust, and airborne debris before they can access the engine cylinders. This heavy-duty 1-gallon bulk size provides an exceptional, cost-effective maintenance supply for automotive workshops, detailing centers, or enthusiast garages, ensuring your filters deliver factory-spec airflow and engine safety after every clean.

Product Specifications:

• Brand: K&N.

• Product Type: Cotton Air Filter Filtration Oil.

• Volume / Capacity: 3.785 Liters.

• Oil Profile: Signature red-dyed premium compound, fast-penetrating, high-tack, and evaporation-resistant.

• Origin: Made in the United States of America.

Product Benefits:

• Maximum Filtration Defense: Optimizes the filtration properties of standard cotton media, ensuring heavy-duty arrestance of fine desert dust without bottlenecking mass airflow.

• Restores Lost Horsepower: Re-establishes the clean air induction paths through the filter following a maintenance wash, renewing quick throttle pickup and torque response.

• Bulk Industrial Savings: The 1-gallon canister provides a massive volume yield, sufficient for servicing filters dozens of times, making it highly economical compared to small aerosol sprays.

• Sensor-Safe Chemistry: Formulated to stay tightly bonded to the cotton fibers, preventing oil migration to critical Mass Airflow (MAF) sensors when applied correctly.

Directions for Correct Application:

1. Pre-Cleaning: Thoroughly wash the performance air filter using an official K&N cleaner kit, rinsing out all accumulated grit with low-pressure water.

2. Complete Dryout: Allow the filter element to air-dry naturally completely. Never apply oil onto a damp or wet cotton surface.

3. Oil Application: Utilizing an applicator tool or spray pump, apply the filter oil evenly along the peak of each cotton pleat (on the exterior, dirty-side face of the filter).

4. Wicking Period: Let the filter rest for 20–30 minutes, allowing the oil to naturally wick throughout the media until a uniform, signature red color is achieved.

5. Trim and Install: Wipe off any accidental excess oil on the black rubber sealing frame before dropping the unit back into the factory airbox.

Important Note:

Do not over-saturate the air filter with oil. Apply a measured layer to cover any remaining white cotton areas to avoid oil pooling inside the lower air induction housing.

Renew your performance air filter and secure absolute engine defense! Buy the bulk K&N Air Filter Oil Gallon from Carboost store today.