Royal Purple Oil

Royal Purple Oil is located in Porter, Texas.  They have over 200 years of expertise in the performance lubricants industry. Distributed in multiple countries throughout the world, they are very active in the lubricant industry. They were acquired in 2012 by Calumet Specialty Products Partners. Specializing in more than just motor oil, Royal Purple lists oil filters and many different additives and lubricants on their website. They offer fuel system cleaners, octane boosters, power steering fluid, transmission fluid, and even synthetic gun oil. Royal Purple offers many different types of…

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Best Motor Oils – Complete List

Here is the complete list of best motor oils ranked by PSI strength. The higher the PSI strength the better the oil is at preventing wear. Oils within 10% of each other can be considered approximately equivalent. All of these oils were tested at 230 degrees Fahrenheit. Multiple tests were conducted. All oil bottles were shaken before samples were taken. The list will be broken down into five distinct categories based on the PSI strength. The best motor oils with over 105,000 PSI have incredible protection. Oils between 90,000 and…

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