Thread: What gas octan to use with 1998 grand prix gt v6 3.8L ?

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#16 Re: What gas octan to use with 1998 grand prix gt v6 3.8L ?
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08-18-2012

I totally missed that it said gt in the title. Use regular unleaded gas 87 octane.

98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
01 gt z7 turbo tep trans zzp motor
08 g8 gt cam exhaust 11.87@118

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1998, 38l, gas, grand, octan, prix

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