Royal Purple has a specialized lubricant for nearly every high performance application. Their wide range of state-of-the-art lubricants out performs other synthetic and mineral based oils in the industry. Independent tests have proven that simply by switching to Royal Purple, you can see a decrease in engine wear by as much as 80% and a 3% increase in torque and horsepower. Royal Purple motor oil an API licensed product that will provide superior protection and improved performance in any four-cycle gasoline or diesel engine. It will reduce internal engine heat and wear and save fuel and reduce emissions. The excellent oxidation stability saves you money because it enables longer service intervals and fewer oil changes.