Royal Monarch Syn Diesel Supreme Plus engine oils formulated for extended drain service in the most demanding applications requiring CI-4+/SL additive chemistry in synthetic based oils. At the same time, this oils provides long drain service in conventional engines by promoting longer engine life and reduced component wear by providing higher oil film thickness, better wear performance and improved oxidation control at higher temperatures.
Royal Monarch Syn Diesel Supreme Plus engine oils are a fully synthetic, high performance, all-season diesel engine oil developed for all types of automotive fleet equipment, including on and off – highway vehicles and farm equipment with heavy duty diesel engines and off-road heavy duty vehicles used for construction and mining, requiring API CI-4+ performance oil. This product is ideal for gasoline engines where an API SL or SJ performance level is specified.
Meets the needs of today’s high-performance, fuel efficient, low emission diesel and gasoline engines.
Better cold flow properties for easier starting in colder weather.
Extended oil drain capability
Overall increased engine perfection
Good shear stability
We carry all Synthetic Lubricants at SLFi...our website displays the most common products we sell. Please call us to discuss you lubrication needs and we'll find, or create, a synthetic lubricant for your application.
Synthetic Lubricants & Filters, Inc. • Distributor of Synthetic Lubricants