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2004+ GPs - Is Premium Fuel Required?
shenning
06-02-2008, 03:38 PM
I've been looking at 2004 and newer GPs online. In many of the ads, I've seen Grand Prix GTs shown specifying that premium fuel is required. As far as I can tell from the ads, they are just a standard series III 3800. Is higher octane required for these engines?
Red Tipps
06-02-2008, 04:52 PM
Unless they are supercharged I dont believe you need to run anything higher than 87/89?
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