Wynns Hydraulic Valve Lifter concentrate is an oil soluble supplement designed to restore efficient working of hydraulic valve lifters.

Releases sticking valve stems and hydraulic valve lifter components.
Quietens valve train noise.
Dissolves dirt, gum and varnish deposits in the oil channels.
Contains EP agents for extra protection.
Does not harm catalytic converters.
Compatible with all mineral, synthetic, single- and multigrade oils.