Quote:
Originally Posted by Bill Verburg
They leak when they sit, the more they sit the more they leak.
all that aluminum heats up and expands, it seals better that way. When it sits it contracts and leaks.
read your freaking owners manual for the correct oil weight, I guarantee that it's not 10w-60.
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Yes, I realized that. The point is that the car no longer leaks while it sits when using 10w-60- did you read my initial post?
Porsche is now making updated motor oil recommendations for classic Porsches based on their research & development efforts and engineering resources, coupled with their extensive experience with air cooled engines - needless to say, I think this holds a certain validity!
If you don't trust and question Porsche's engineers at Weissach on an update on motor oil recommendation, how can you even trust the more complex system integration and testing of a Porsche, along with their validation prior to leaving the factory?
Research and technology simply does not remain static...But if it makes you feel more comfortable/happy to abide to the information written on an owner's manual decades ago, and ignore the recommendation from the vendor, based on new/comprehensive testing, by all means go for it.