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I have seen some folks advocate using synthetic motor oil or atf in their 850. At three to four times the cost of non-synthetic mineral based oils is it worth and if so, specifically why?
I understand that I can leave synthetics in my car for a longer period,however wouldn't the engine or transmission waste products and metal flakes that swim in these super lubricants and cause engine or transmission wear outweigh their longevity?
I would appreciate objective(just the verfiable facts) and subjective comments. Thanks.
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