SUPREME MOTOR OIL
SUPREME MOTOR OIL has a high total base number of 15 Plus. This high TBN level indicates how well SUPREME MOTOR OIL fights acids and their corrosive effects. Many commercial lubricants on the market have a TBN level from only 6 to 10. **There are many different ways to boost the total base number of an oil. Royal Oil Co.’s SUPREME MOTOR OIL receive most of their alkalinity from the detergent value of the oil. Of course, this is the most expensive way to go and it is certainly the most effective as well. High detergency TBN additive are more effective at controlling the overall effects of increased soot loading of the oil. The high total base number end result is longer life and extended drain intervals with SUPREME MOTOR OIL.**
SUPREME MOTOR OIL meets the gasoline (SJ) specification as well as the diesel (CF) specification for single viscosity oils. This means one oil can be used in a mixed fleet to handle many types of engines. The finest of zinc additives are used for anti-wear protection. A large percentage of anti-wear additive is placed in the SUPREME MOTOR OIL . In fact, 0.12% zinc is the minimum requirement to carry the SUPREME MOTOR OIL label.
THICK OIL FILM PROTECTION
First and foremost, SUPREME MOTOR OIL is intended to keep metal parts separated from each other. Since even the finest of metal surfaces has minute projections, some contact always occurs, producing what is called normal wear. SUPREME MOTOR OIL prevents serious contact by forming a film which is thick enough to keep certain engine parts entirely separated most of the time.