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I am located in northern USA. I am considering HPL if it is surely better than any other brand. It may be obvious but how is HPL better? I have found regular brands such as Castro and Mobile with all the required approval ratings along with proper viscosity. But I am not an oil expert on...

I see, I looked into HPL oil and noticed many users on here recommend HPL. What’s the difference from Mobile and castrol? I spoke to someone at HPL and they recommended 0w-40 super car oil. I have never used HPL and just recently heard about the brand. My question is, what is the major...

I have a 2016 Rolls Royce Wraith 6.6L V12 Same engine as a 2014 BMW 760LI V12 The owner's manual allows four different kinds of oil, 0w-30, 5w-30, 0w-40, 5w-40. The owner's manual also states that an API SN rating is required. I also read online that Rolls Royce recommends Castrol oil. The...