Bel-Ray Foam Filter Oil Spray is a foam air filter oil for all street, off-road, and racing foam air filter applications. Innovative Bel-Ray
technology has produced a foam filter oil unlike any other. It is easy to apply and improves airflow. Ultra-viscous formula forms an oil
barrier to trap micron-sized particles that can cause engine damage. Bel-Ray’s waterproof air filter oil prevents clogging when wet.