Date: Wed, 02 Mar 2005 04:03:32 GMT From: Laura K <lauraknospamousergraphics.com> Subject: Re: Saab 9-3: What octane to tank?
"Happy" <notnospamd.com> wrote in news:4223a3ae$1nospam.microsoft.com: > I have tried 87, 89, 92 with no noticable difference, although I suspect > to feel a more little vibration when idling on 87. > > The manual recommends 92, but says it can run lower grade as well. > > The only reason why I will tank 92 would be if 87 would be bad for the > engine or shorten its lifetime. If I were to reason about this, I would > actually think that 87 causes lower heat and less violent explosions, > actually prolonging the lifetime. But I suspect it doesn't work that way > :-) Is it a turbo? In my 1997 900SE, I get the most fun with premium (92) also the best mileage at highway speeds. If I'm just going to be driving around town, I'll use midgrade (89). Not as much ooomph when the turbo kicks in but acceptable. Mileage drops though. The first time I ran 87, I thought the turbo had died. It came to life again when I put 92 in it.
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