shenning

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

Unless they are supercharged I dont believe you need to run anything higher than 87/89?

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03' GTP Black on Black
S&S stainless headers
3" catless to resenator
JMB FWI
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AL 104's
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