Date: Fri, 14 Feb 2003 12:59:20 +0000 From: Johannes H Andersen <johsnopsamsizefitterzzzz.com> Subject: Re: use fossil or synthetic oil?
andrewunix wrote: > > Wed, 12 Feb 2003 22:32:33 GMT, nobodynopsamere.net suggested: > : I have a 2000 9-5 and it came with synthetic oil from the factory > : (or at least the dealer). There is a tradeoff between using regular > : (fossil fuel) oil vs. synthetic oil, the synthetic lasts longer but is much > : more expensive. > : So I am taking a survey of Saab owners to see what your preferences > : are and opinions on this subject. > : Thank you. > > If it came with synthetic oil, stick with synthetic oil. It's quite > possible that on that model it is integral to the design of the engine. Quite. The manual for my 1993 Saab 9000 CSE LPT require synt or semi synt. I just did the oil/filter change, 5/40 synt; motorway consumption went from 40 mpg to 42 mpg (imperial gallons = 4.5446 L) and the engine sounded smoother. This suggest that the 5k interval is about right. Johannes
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