Quote:
Originally Posted by TibetanT
Feds:
First and foremost, welcome to the Best Porsche Forum on the Internet!
Second, since I live in a very cold climate, during the Winter months I run Mobil 1 Syn. 10W-30 High Mileage in all my Porsches. Then, during the late Spring I change over to Mobil 1 Syn. 15W-50. I am no expert, but I have gotten very good results doing this for both the 911 and the 944. Brad Penn oil is the best, but I like you cannot afford the shipping cost. However, with that said, there are some people who "pool" their money to make a large purchase and then divide-up at delivery...seems like a good idea.
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I do not really want to start an oil discussion here but I would be careful with Mobil. As I have stated in several other threads, Mobil makes an acceptable product for later cars but they have played many games with their formulations and currently are not proud enough to publish the current data in their Official Product Data Sheets. I find this very disturbing. Given that our older engines need the Zinc/Phosphorus (ZDDP) additive to protect the camshafts, I would strongly recommend you consider another vendor. But as I also say, your car, your money, your choice.
From another thread, a chart to help you select the proper oil weight. Note that 10W-30 is only for the coldest of climates or for "fuel efficient oil" but Porsche goes on to say, don;t do that without being very careful first.
Quote:
Originally Posted by 84_Carrera
This is from my '84 911's owner's manual.
I did 20/50 3-seasons, and 10/40 in the winter... noticing pretty normal engine oil temps with 10/40 in the winter, and easier cold turn-overs.
Use at your own discretion.  |