Royal Purple

Royal Purple built its name on high-performance synthetic motor oils, gear oils, and greases formulated with the brand's own Synerlec additive technology, aimed at extending equipment life and protecting under heavy load rather than just meeting a minimum spec.

Founded by John Williams, Royal Purple built its reputation by staying focused on lubricant formulation rather than diversifying into fuel or other petroleum products, drawing on formulators with a combined 200-plus years of experience. The company operates out of Porter, Texas, and has been part of Calumet since a 2012 acquisition.

Royal Purple's range covers everything from racing motor oil to industrial-grade air compressor oil, in case sizes that make sense for a shop or fleet rather than a single retail buyer. Bulk55 stocks that full range so shops can order the exact grade and pack size they need without a direct Royal Purple account.

We carry Royal Purple in bulk, including the NLGI #2 Ultra-Performance Grease and XPR 3.1 10W-40 Racing Oil. Browse the full Royal Purple lineup here.