this may be a dumb question but do stock b6 a4's come with a factory oil cooler? i ask because i just got bit by the oil sludge monster and now have it fixed. to avoid this i have considered running a oil cooler if they didnt already come with one. i'd do anything right now to make sure this DOES NOT come back again. dont get smart and say "try changing your oil." because i have always changed it with full syn every 3500 miles.
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