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Date: Thu, 09 Jun 2005 00:38:57 GMT
From: Johannes <johsnospamblock7365sizefitter.com>
Subject: Re: Synth Oil Chg Interval on a Viggen?


WitchDr wrote: > > "Johannes" <johsnospamblock7363sizefitter.com> wrote in message > news:42A6FB48.DDC0D841nospamblock7363sizefitter.com... > > Higher octane is better. I find that my 9000 CSE LPT will sometimes cut > > out > > if I accelerate very hard on regular petrol. But this does not happen with > > Optimax or other high octane. > > Saab's and most other cars run fine on regular unleaded. If you have a high > pressure turbo (over ~8psi/.5Bar) then you start needing higher octane. Saab > even touts the fact that their turbo cars don't need high octane gas (save > Aero/Viggen/HOT). Well, the car runs fine on regular, but I notice the difference when I push it to the limit of the rev range, though this is only done for curiosity reasons. But then high octane is definitely better. Saab may not need high octane petrol in the sense that the anti-knock system protects the engine.

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