What is the Best Synthetic Oil? - Best Synthetic Oil Guide
#5 Castrol
Castrol_Logo_1968Castrol EDGE Synthetic Motor Oil – This brand, now owned by British Petroleum (BP) is one of the better marketers to the high performance throne. Castrol really focus on “additives” and from “Syntec” are now starting to promote “Titanium”. Remember “Magnetic”, then “Syntec” now “Titanium”. They must buy their Base Oils if PAO Group IV or Group V. Castrol is popular amongst racing teams and car manufacturers, and offers higher performance than mid-range synthetic motor oils, while still being slightly less expensive than the top of the line oils.
#4 Pennzoil
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Platinum Pennzoil Full Synthetic Motor Oil – With its proprietary PurePlus™ formula, Pennzoil Platinum synthetic motor oils convert natural gas into a mixture that creates cleaner pistons and a smoother functioning engine is their claim. So, they at least share what Base Stocks they use, Group III, not Group IV, so can claim “synthetic” but also focus a lot on additive technology. They buy their base stocks so are benders so not sure why they claim they do it?
#3 Royal Purple
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Royal Purple Synthetic Motor Oil – Very interesting as they market both API Performance products and others that should only be used after your car/engine warranty has expired. Why for the latter? Because they increase the antiwear additive content above the requirement for control of exhaust emissions when new! So, if you have an older car and don’t mind maybe increasing your emissions then go for the Fully Synthetic Base Oil options as you’ll still get all the other benefits.
#2 AMSOIL
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Makes the claim of being the first to market Full Synthetic Engine Oil. Not sure, but still believe they buy all their Base Stocks and then blend with purchased additives? So, if they utilise Group IV PAO plus maybe some Group V in their products, gotta be a great oil with their experience!
#1 Mobil 1
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Mobil 1 Synthetic Motor Oil – Mobil is the only oil company and brand that I know that has been involved in the research, development, manufacture and marketing of synthetic base stock and synthetic oils since the 1960’s to this day. They actually make all the different types of base stocks covering Group I, II, III, IV & V from Conventional Mineral to Synthetic. I believe the Mobil 1 family is the best synthetic oil as this is what Mobil have been doing for over 40 years – sort of “homegrown” synthetic engine oil! Many other brands are companies that buy base oils and technology and then resell!
Also, did you know that PAO’s from Mobil are so clean that they can be classified as Technical White Oil for Incidental Food Contact with both Kosher and Halal approvals?