Got this little gem off the Advance Auto website:
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While synthetic oil is superior stuff, it's still petroleum-based, just like non-synthetic oil. Its molecule size is synthesized, which improves start-up lubrication and enhances flow. But there's nothing in it that will make it last and protect twice as long as the regular stuff.
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I guess ExxonMobil missed the ball on their new line of M1 oils then. I'll have to ask the guy at the counter to elaborate on this next time I'm down there
Quote
While synthetic oil is superior stuff, it's still petroleum-based, just like non-synthetic oil. Its molecule size is synthesized, which improves start-up lubrication and enhances flow. But there's nothing in it that will make it last and protect twice as long as the regular stuff.
UnQuote
I guess ExxonMobil missed the ball on their new line of M1 oils then. I'll have to ask the guy at the counter to elaborate on this next time I'm down there