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Old 12-05-2012, 06:27 AM   #51
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Originally Posted by 330iPilot View Post
Not high enough to coke conventional oil. You need way higher temps than any regular old street car engine can produce.
Perhaps in a single instance, but take higher than average temperatures over an extended period, and you've got an oil that probably wouldn't even last the usual 3K miles.

In this case, chances are the non-synthetic was pretty far from the specifications required of the E46.
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