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mikefocke · 06-19-2010, 05:52 AM

And here is an area where Porsche has, in effect, admitted they made a mistake in their original recommended interval and has lowered the interval. Since Porsche probably based their change judgment on the Porsche engines they see and they are probably mostly using Mobil 1, that tells me I shouldn't trust Porsche's original guidance in this matter. Instead, I prefer to listen to people who have their oil (or their customer's) analyzed and they tell us pretty consistently that Mobil isn't the oil it once was and to use another full synthetic and to change it as frequently as every 3 to 5k miles.

Get some ramps, find a hill, get a 15 quart oil drain container (Autozone $9.99) and learn to do it yourself (you'll need a filter, crush ring and a filter wrench that fits the Porsche filter cover) and buy your oil on sale to keep the costs down.

If you use the search function here and search for the term "oil" you'll see many threads where opinions have been offered.

06-19-2010, 05:52 AM	#7
mikefocke Registered User Join Date: Aug 2005 Location: Sanford NC Posts: 2,537	At least as important as the oil you use is the interval you change it at And here is an area where Porsche has, in effect, admitted they made a mistake in their original recommended interval and has lowered the interval. Since Porsche probably based their change judgment on the Porsche engines they see and they are probably mostly using Mobil 1, that tells me I shouldn't trust Porsche's original guidance in this matter. Instead, I prefer to listen to people who have their oil (or their customer's) analyzed and they tell us pretty consistently that Mobil isn't the oil it once was and to use another full synthetic and to change it as frequently as every 3 to 5k miles. Get some ramps, find a hill, get a 15 quart oil drain container (Autozone $9.99) and learn to do it yourself (you'll need a filter, crush ring and a filter wrench that fits the Porsche filter cover) and buy your oil on sale to keep the costs down. If you use the search function here and search for the term "oil" you'll see many threads where opinions have been offered.