Driven HVL (High Viscosity Lubricant) features advanced synthetic base oils to increase film thickness and resist scuffing. This makes it an ideal assembly lubricant that provides a fluid lubricating film that is very tenacious. It can be applied to piston skirts, engine bearings, timing components, gear drives and bushings. Driven HVL is also a great chain lubricant as it provides grease like durability while reducing friction without hardening or becoming "sticky". Driven Synthetic High Viscosity Engine Assembly Lubricant mixes with regular motor oil to increase film thickness and is non-foaming to protect all internal engine rotating and reciprocating components during assembly and initial break-in!