Quote:
Originally Posted by tooknees
Straight from the Owners Manual .
8-44 Driving and Operating
Recommended Fuel :
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. You can also use
regular unleaded gasoline rated at
87 octane or higher, but the vehicle’s
acceleration could be slightly
reduced, and you might notice a slight audible knocking noise.
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So i would assume you would get better performance out of 91 then you would with 87...
