Date: Fri, 12 Mar 1999 11:06:37 +0100
From: Andreas van der Wal <>
Subject: Re: Premium vs. Regular Gas

This must be rubbish. In Sweden we have 95 and 98 octane fuel and if 95 or higher would be harmful for the engine we're in lots of trouble. I know there are some differences between US/European cars, but this seems absurd. What usually happens when you use to low octane is that the engine starts to knock (correct word?), especially on high rpm. In some SAAB's the computer adjusts to the low quality fuel, by giving you less hp/Nm. When using to high octane it normally means you pay extra for better fuel, that you cannot take advantage of. Please refer to your owner's manual since most SAAB dealers I've met, don't know what they are talking about. / Andreas MManic wrote: > When I purchased my 98 900 my dealer told me the car was designed to run on > regular (83 octane?) and that premium (93-95 octane) would provide no > benefit and may even be harmful. I can't imagine this is true. > > Also, after the 5,000 checkup, when is the first major service required? > At 10,000mi or 15,000mi? What does it entail and what does it cost.

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