Factory Foam Air Filter Oil is the finest protection your engine can have against the ingress of airborne debris.
It will not only protect from debris entering through the filter but is also highly resistant to emulsification in cold and wet conditions.
It allows superior airflow needed to provide top performance from your engine.
If the foam air filter is not new then completely clean using Factory Foam Kleen.
Shake the can well and spray directly onto filter until completely covered and allow it to soak in for a few minutes.
Squeeze out excess oil and allow it to dry completely before use.