I don't think he ran any boost. I believe he kept the engine at 10"hg vacuum.
Part of being eco in my opinion is to not use the more highly processed fuel. When the lower octane will run the engine without detonation. He was keeping his cylinder pressure down with his driving style.
I have had a turbo truck. The manufacturer recommended premium fuel but stated it was safe with lower octane as the fuel map and boost and or timing would adjust to prevent engine knock. I never drove it for economy. It had a turbo and I was going to use it. In my part of the country premium fuel is not always available. I had to fill with unleaded regular or gasohol many times.
Cool graphic showing the extended butt of the Saab.
Are they out of business after the GM collapse?
Quote:
Originally Posted by Domman56
U don't run low octane in turbo motors or any forced induction motors for that point It would ruin the turbo after a while
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