Rock Oil Guardian 15w/40

Rock Oil Guardian 15w40 is a premium grade semi-synthetic 4 stroke engine oil that not only meets but exceeds the exacting demands of the API SL, ACEA A3, B3,  &  JASO MA specifications for high performance engines.

Increased performance together with longer service periods of a modern engine has put more demands on the engine oil.  Guardian semi-synthetic has been developed to give maximum protection, with rapid circulation at cold start and complete protection at high temperatures.

This has been achieved using the very latest technology in synthetics and additives, they guard against wear whilst reducing deposits and allow the engine to opperate more efficiently.

JASO MA,  API SL/CG-4/CF,  ACEA A3/B3/B4,  SAE 15w40