Engine Oil Product
SUPREME ULTRA HD
PRODUCT SIZES AVAILABLE:
WHAT IS SUPREME ULTRA HD?
SUPREME ULTRA HD is Royal’s answer to the requirements of a CJ-4 oil, designed primarily for post-2007 diesel engines. It was during this time that additive restrictions were placed on oil manufacturers, and engines saw dramatic changes with the incorporation of EGR and particulate filtration systems. Through all of the changes, SUPREME ULTRA HD emerged as the premier oil for the time, still boasting an industry high 14 TBN and exceptional extended drain capabilities.
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