Date: Sat, 28 Jul 2001 20:31:01 -0500
From: "Walt Kienzle" <>
Subject: Re: premium fuel only for Aero?

I haven't specifically checked for the 6 cyl. models, but I think the dealer was overstating the need for premium. For everything but the Aero (including 6 cylinder models to the best of my knowledge) premium fuel is recommended but not required. Premium fuel will give better acceleration times, and somtimes better fuel economy (YMMV). Be careful with this, because depending on the gearing and model of the car, LOWER octaine fuel may give better fuel economy, but will always give poorer performance on knock sensor equipped cars like Saabs. And for Simon, when we talk about octane in North America we use the AKI numbers [Anti Knock Index = (RON + MON) / 2 ]. In Europe the octane is measured using RON (Research Octane Number) only. They do not use the Motor Octane Number. RON tends to be about 4 or 5 points higher than the AKI number. Walt Kienzle 1991 9000T "mdeblois" <> wrote in message news:2kB87.3548$ > I just bought a 97 9000 Aero Turbo with the 5 speed transmission. Reading > the manual, I see that all Saabs with the exception of the Aero with 5 speed > can burn regular grade gas, but my car is supposed to be fed the premium > (90.5 octane is what the manual says). Is this the experience of other Aero > owners? Prior to buying the 9000, I'd spoken to the local Saab dealer and > was told that only the newer 6 cylinder engine required premium fuel. > Thanks. > > >

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