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Re: Considering my first Saab 9-3, what should I know? Posted by JimBlake [Email] (#141) [Profile/Gallery] (more from JimBlake) on Tue, 3 Dec 2019 11:40:02 In Reply to: Re: Considering my first Saab 9-3, what should I know?, dlh, Tue, 3 Dec 2019 08:42:03 Members do not see ads below this line. - Help Keep This Site Online - Signup |
The 4cyl cars say "90 octane" but it's not clear whether that's RON, making it essentially regular-gas. I've usually used mid-grade.
But I guess it looks at knock-detection and adjusts the boost & timing to take advantage of higher octane.
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