01-11-2006, 08:36 PM
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#3 (permalink)
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Premium Member
Car: '07 MSRT8 Bright Silver; '06 H.E. 300C Inferno Red MSRT: AHamr, Grp1, UCon, PrkSnr, 402flaps, Stealth HIDs, 22elite arm/cons, pin stripes, Predator H.E.: ProtGrpII, RearVES, Sunroof, UCon, Sirius, 402flaps/cowl, 22elite arm/VEScov, Stealth HID fogs
Join Date: Oct 2005
Member Number: 3755
Location: Near Parkersburg, WV
Posts: 6,105
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Actually the 300C (V8 Hemi) has a recommendation of 89 octane in the US. However, many folks such as myself have found no notable difference in performance or fuel economy with 87 octane. However, some have reported that performance has been noticeably poorer using higher than recommended juice.
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