Top 10 Best Royal Purple 10w-40

Proprietary Synerlec technology elevates film strength to 3X to 4X that of other synthetic engine oils for outstanding valvetrain protection. Formulated with up to 30 more anti-wear chemistry than other conventional and synthetic spec engine oils. Superior corrosion protection. Improved sealing between the piston ring and cylinder wall maximizes horsepower and torque and optimizes fuel economy. Exceptionally high film strength for dramatic reductions in engine wear and reduced engine heat to extend the life of your engine.

Formulated with proprietary Synerlec additive chemisty providing 3X to 4X the load carrying capacity of other synthetic engine oils. High film strength protects buckets, crankshafts and reduces piston scuffing. Superior rust and corrosion protection. Cooler operation and less parasitic power loss. Meets the requirements of JASO MA2 for wet clutch compatibility. Flash Point 204.00 Degrees Celsius. Fit Type Vehicle Specific.

Greater Wear Protection on Startup. High Temperature Service Capability. Clean Efficient Equipment Extends Equipment Life. Non-Foaming Outstanding Rust and Corrosion Protection.

Has an exceptionally high film strength for dramatic reductions in engine wear and reduced engine heat to extend the life of your engine. Offers outstanding wear protection for valve train components. Features improved sealing between the piston ring and cylinder wall. The exceptional oxidation stability extends oil life and allows for more miles driven between oil changes. Addition of advanced synthetic solvency reduces engine deposits and keeps engines clean.

Minimizes wear and restores lost engine performance. Increased protection against LSPI. Fortified with ZincPhosphorus anti-wear additive. Extended drain intervals. Exceptional oxidation stability. Reduces engine deposits. Superior corrosion protection.