Royal Purple Motor Oil delivers superior protection and improves performance in both gasoline and diesel marine engines. Whether your watercraft is two-cycle or four-cycle, Royal Purple increases horsepower, saves fuel and reduces heat, wear and emissions. Royal Purple’s unsurpased oxidation stability allows for extended oil drains and fewer oil changes. This saves you time and money and reduces the impact on the environment.
Royal Purple’s performance advantages come from a blend of synthetic oils plus Royal Purple’s proprietary Synerlec technology. Royal Purple Motor Oil is compatible with other mineral and synthetic marine motor oils.
“I have been using your products for several years. I have a 1995 Suzuki outboard with over 4,000 hours. Compression checks have shown no wear. The engine continues to perform extremely well. I have had no out-of-pocket expenses due to engine mechanical breakdown. The lower unit also contains your product and has no apparent wear. Thank you for making such wonderful products.”
—D. Tannehill, Pro Bass Fisherman
