[Idaho Red Rocket 3]

Gee Flavor 987S who peed in your Wheaties ??? Just because you have not seen any 10W40 approved on a Porsche list doesn't mean 10W40 is not the right weight oil to use. Look what the shop owners say.

My 2000S Porsche owners manual states to use 10W40 synthetic as the first choice. And the car has a Mobil 1 recommended sticker under the trunk lid. If Porsche recommendations are so important to you, please ponder this thought. Porsche's recommended oil change interval is 15,000 miles. Do you agree with that ? I'd bet you don't. As we can see in the posts about oil and change intervals, just about everyone doesn't agree with Porsche on that. So why is the Porsche approved list so important to you ?

Here is another example. My 2000S came with Porsche recomended tires. They were awful. I replaced them with low cost non Porsche approved tires that out perform them and give me vastly improved handling.

I drive my Porsches, Fords, trucks and motorcycles well above average amount of miles per year. In the 40 years I've been driving, I have logged well over 2 million miles on vehicals I own and self maintain. I think my oil practices have proven to be correct because of the long life and good running condition of my motors and drive lines. I'm very satisfied with my choices and feel comfortable recommending them to others. They a based on experience and a considerable amount of reseaching my choices before I buy.

10W40 synthetic is a good choice for the 986 cars. 3 to 5 thousand mile changes depending on use is good.

Bill