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MyCamaroSS · 11-26-2010, 07:32 PM

i agree, the owner's manual says:

If the vehicle has the 6.2L V8
engine (VIN Code W) or the 6.2L
V8 engine (VIN Code J), use
premium unleaded gasoline with
a posted octane rating of 91 or
higher. For best performance, use
premium unleaded gasoline with

a posted octane rating of 93.

my dealer says i should be ok with Shell 89 octane, but there's a big price increase for 91 octane in SE CT. trying to find out if anyone else is using 89 octane, thanks

11-26-2010, 07:32 PM	#4
MyCamaroSS Drives: 2011 2SS/RS Blue/Silver Stripe Join Date: Nov 2010 Location: Niantic CT Posts: 16	owner's manual / Shell 89 octane i agree, the owner's manual says: If the vehicle has the 6.2L V8 engine (VIN Code W) or the 6.2L V8 engine (VIN Code J), use premium unleaded gasoline with a posted octane rating of 91 or higher. For best performance, use premium unleaded gasoline with a posted octane rating of 93. my dealer says i should be ok with Shell 89 octane, but there's a big price increase for 91 octane in SE CT. trying to find out if anyone else is using 89 octane, thanks