MAGNA SYNERGY PREMIUM-XTRA is Gasoline-fueled passenger cars, light trucks and sport utility vehicles that do not require an ILSAC GF-6 oil for warranty coverage. Older vehicles where the engine manufacturer specifies monograde engine oil. Competition engines and high-performance street engines MAGNA SYNERGY PREMIUM-XTRA is formulated to provide excellent wear protection, to minimize sludge and varnish formation, and to resist viscosity and thermal breakdown, even in severe service. It also protects against rust and bearing corrosion and is highly resistant to foaming MAGNA SYNERGY PREMIUM-XTRA SAE 20W-50 AND 10W40 also contains a boosted level of zinc dialkyldithiophosphate (ZDDP) additive to provide additional wear protection and enhanced oxidation resistance in the most demanding applications. It is particularly recommended for use in turbocharged engines and in high-performance engines with flat-tappet camshafts, especially during the critical break-in period.