Quote:
Originally Posted by tarbe
None of todays SL or SM dino, used with common sense in a sound engine, will leave deposits. Your statement makes it sound like dino oil leaves deposits as a rule. Am I mis-reading your post?
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Generally synthetic oils stand up to heat better, that's a fact. Research it yourself. However, some engines may do fine on dino, especially older ones and/or those that are not turbocharged. Today's diesels all require synthetics. Why do you think that is? In Europe, hardly anyone uses dino oils anymore.
I know my wife's '93 Accord developed significant deposits on a lifelong diet of dino oils. Her car has been on synthetics for the past 2 years and hopefully her engine will get cleaner or maybe it already has. I haven't had the valve cover off to confirm.