Quote:
Originally Posted by Wayne at Pelican Parts
DON'T USE SYNTHETIC ON THE OLDER CARS - IT WILL CAUSE LEAKS JUST LIKE THIS ONE!!!
I say this in multiple places in both my 911 books...
-Wayne
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My PPI said the rear seal was 'weeping'. Ever since I have been using a synthetic (elf brand) and have not had one leak anywhere. (Other than the blown oil pressure switch). But my car is an 88 and may not be defined as an 'older car'. From what I have researched the first synthetics use to cause the problem but later synthetics supposedly had all sorts of magical pixie juices added to them to prevent it.
-matt