I hope it's ok because that's the highest we have out here in CA.
is 91 octane OK?
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From: grand island nebraska
is 91 octane OK?
i have driven all over this town, checked every gas station and NOBODY carries anything higher than 91. The best i have found is Shell V-Power 91, is that good enough or am i screwed? 
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From: Mustang OK
Following quote from the 2002 Corvette Owner's Manual, Section 6, Service and Appearance > Fuel:
Gasoline Octane
Use premium unleaded gasoline with a posted octane of 91 or higher for best performance. You may also use middle grade or regular unleaded gasoline rated at 87 octane or higher, but your vehicle’s acceleration may be slightly reduced. If the octane is less than 87, you may get a heavy knocking noise when you drive. If it is bad enough, it can damage your engine.
Use premium unleaded gasoline with a posted octane of 91 or higher for best performance. You may also use middle grade or regular unleaded gasoline rated at 87 octane or higher, but your vehicle’s acceleration may be slightly reduced. If the octane is less than 87, you may get a heavy knocking noise when you drive. If it is bad enough, it can damage your engine.
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From: grand island nebraska
Originally Posted by GrayC5
Following quote from the 2002 Corvette Owner's Manual, Section 6, Service and Appearance > Fuel:
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From: Mustang OK
Originally Posted by kisypher
i should probably order a manual. mine didn't come with one. that's one thing i didn't check or ask about before i bought it.
2002 Corvette Owner's Manual
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From: grand island nebraska
Originally Posted by GrayC5
Here's a link to an electronic version of the 2002 Corvette Owner's Manual in .pdf format that you can either save to your favorites or "right click" and save to your computer's hard drive:
2002 Corvette Owner's Manual
2002 Corvette Owner's Manual
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You're fine with 91.
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Originally Posted by El Paso Vette
91 should be OK per the manual. Also, what is your elevation. The higher that you are the less octane rating you need for reasons that I have never figured out.
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From: Eddy Texas
At 8 to 10 cents (locally) a gallon more, I spring for 93 every time. That's only about a dollar per fillup, and to me it's worth it to not worry about pinging with a lower grade. And the better performance is cheap at $1.00.