Quote:
Originally Posted by CoolbreezeNJ
Your analogy isn't quite correct. Generally speaking the difference between extended life oil and not extended life oil is the additive package which resists acids a bit more and the presence of acids is what eventually breaks down the oil.
I own a 2017 GM turbo diesel Duramax engine and so why doesn't GM require Dexos Gen 2 for that?
My simple point is that you can buy off the shelf oil from Walmart from $23 to $30 per 5 quarts of oil and not worry about Euro spec oil. I can't help with is 10 qts of oil.
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There are more differences w the ESP oil, different base stock AFAIK so totally different oil. GM gives a list of improvements over previous oils used.
IDK why anyone would use anything else. Saving a few bucks 1-2x a year on my $45k car to use inferior oil seems odd to me. Same with the filter, WIX XP is probably the best filter on the market.