High-Mileage Motor Oil from Royal Purple

Optimizing High-Mileage Engines


Royal Purple HMX high-mileage motor oil


If your car has a ton of miles racked up on the odometer, you might want to use synthetic motor oil to help regain lost performance in your engine. Engines with more than 75,000 miles may have hardened seals, deposits, and buildup.

This is where Royal Purple’s high-mileage motor oil, HMX, comes in. The synthetic motor oil is chemically enhanced to reduce oil consumption and get rid of deposits and buildup, greatly improving engine longevity. The synthetic motor oil provides great film strength with its zinc/phosphorus anti-wear additives and Synerlec®, Royal Purple’s additive technology. The oil’s film minimizes wear upon startup with its molecular ionic attraction to metal parts.


Royal Purple HMX’s Benefits

– Minimizes wear and restores lost engine performance
– Extends drain intervals
– Exceptional oxidation stability
– Reduces engine deposits
– Superior corrosion protection
– Fortified with zinc/phosphorus anti-wear additive


Learn More About Royal Purple’s High-Mileage Motor Oil


Royal Purple logo


Royal Purple







(281) 354-8600


One Royal Purple Lane

Porter, TX 77365

ABOUT Royal Purple®

Royal Purple produces a wide range of high performance lubricants for nearly every consumer and industrial application. Royal Purple’s founder John Williams was a pioneer in the development of high performance synthetic lubricants and collectively, Royal Purple’s formulators have more than 200 years of expertise in developing high performance lubricants. Royal Purple focuses exclusively on developing state-of-the-art lubricants. Unlike companies that primarily focus on fuel and other petroleum byproducts, Royal Purple’s sole mission is to develop products that significantly outperform other synthetic and mineral based oils. Royal Purple is very active in the lubricant industry and its related associations.