Hydraulic Lifter Additive

Hydraulic Lifter Additive

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.

Available pack sizes

300 ml Can sheet metal (Part No. 8367)

Technical Data Sheet


High performance additive that damps down noise generation of contaminated and sticky hydraulic tappets. Cleans valve bores and thus ensures optimal functioning again.

Intended use

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 6 l motor oil. Not suitable for motorcycles with wet clutches.


  • damps hydraulic tappet noise
  • cleans valve bores
  • improves the lubrication properties of the oil
  • tested for turbochargers and catalytic converters

Areas of application

For all gasoline and diesel engines. Can be mixed with all commercially available motor oils


One 300 ml can of Liqui Moly hydraulic tappet additive is sufficient for up to 6 liters motor oil. The product can be added at any time. After adding, run the engine until warm. For a lasting effect, Liqui Moly Hydraulic tappet additive must be added after each oil change.

Not suitable for use on motorbikes with wet clutches.