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Originally Posted by dts3
So Mobil 1 recommends using Mobil 1 oil... interesting.
By saying it's "part or full synthetic", I think that they are trying to suggest that Nissan's oil might not be full synthetic, even if they know it really is. "full synthetic" falls into the category of "part OR full synthetic." I have no idea whether or not Nissan's oil is full synthetic. I don't understand how a company like Mobil 1 can't determine that. Their "analysis" smells like BS to me.
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According to the Nissan dealer I used to buy my NEO from, it is not a full synthetic oil. It is simply a dino-based oil with a certain percentage of ester oil and other secret additives. It was designed to mainly quiet down the VVEL in our cars so people would stop going to the dealer to complain about engine noise. Logic dictates that if it was truly a full synthetic oil, it would state so on the bottle. The only reason Nissan kept it off the bottle is because it legally cannot claim it is synthetic when it is not.