Monarch Diesel Ultra Syn oils are formulated with a full synthetic base oils including PAO (PolyAlphaOlefin) as well as a tailored additive package. This top of the line motor oil is designed for extended drain service in the most demanding applications. This oil meets or exceeds API Service Category CK-4, as well as the latest OEM’s (Original Equipment Manufacturers) for the following engine specification: Monarch Diesel Ultra Syn also provides an extended drain service in conventional engines by offering a higher oil film thickness, great wear performance and outstanding oxidation control at higher temperatures. These properties allow for a longer engine life as well as minimized component wear.
