Quote:
Originally Posted by hcalvani
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.
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This is all great....if it were true. I highly doubt Porsche is putting any R&D effort or devoting many resources to our antiquated air cooled engines. To what end?
Most likely the impetus behind the Porsche Classic Oil was from the endless threads and debates on the internet about "the best" oil for classic 911's. Someone in Marketing saw an opportunity. They either referenced what was already established (30,40,50yrs ago) by the engineers who designed and built the engines and used that or solicited whoever makes the oil to find a product that they think is acceptable for the intended use.