Date: Wed, 02 Mar 2005 06:14:33 +0000 From: Pooh Bear <rabbitsfriendsandrelationsnospamail.com> Subject: Re: Saab 9-3: What octane to tank?
Happy wrote: > 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 :-) > > Any recommendation, experience? > > What do you use? Well..... I discovered that UK and US octane are different. Long story. Anyway - any Saab will *like* higher octane. The engine management computer is designed to recognise it. Try it and see. If I want optimum performance I fill the tank with Shell Optimax. Graham
