Prevents hydro tappet noise. Lubrication holes and ducts in the oil circuit are cleaned. Secures optimal hydro tappet performance. Increases the reliability and travel comfort of the vehicle. Suitable for all commercial motor oils in gasoline and diesel engines with and without diesel particulate filter (DPF). Tested safe with catalytic converters and turbochargers. Can contents are sufficient for up to 1,5 gal (6 l) motor oil. Not suitable for motorcycles with wet clutches.