I am not too keen on this notion of adding additives to your oil, but I would think as long as oil has been being produced to lubricate parts inside an engine, it has probably gone through more than a few refinement processes from the manufacturers, where certain additives were added to increase its effectiveness and improve its breakdown time. I don't know how far fetched that idea might be, but I do always hear people talking about the advancement in technology in engine oil, so something has to be going on right?
With all that said, I am not for or against additives. I have never used them simply because every owners manual I have ever read with the vehicles I have owned have expressly forbidden it.
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