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View Poll Results: Which octane do you run in your '03 base coupe or vert?
87
2.80%
89
3.74%
93
93.46%
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Fuel octane level

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Old Jan 17, 2013 | 04:09 PM
  #41  
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Originally Posted by Vetteriffic
I run 94 in Canada and 92 in Washington state where I buy 90% of my gas


Canadian Chevron, 94 octane, in my 99
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Old Jan 17, 2013 | 05:03 PM
  #42  
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Ninety three.

.
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Old Jan 17, 2013 | 09:03 PM
  #43  
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87 most of the time.
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Old Jan 17, 2013 | 09:23 PM
  #44  
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92 is what we have and Chevron is what I prefer for the Techron additive in it. Ya fuel is fuel but it's the cleaning additive that makes a few better than the cheapo stations. I never use Arco, Costco, Safeway, Fred Meyer, or the rest of the cheap fuel stations. By the way the octane boosters sold in parts stores do pretty much nothing since you're not boosting the octane from 92 to 95 when they advertize "boosts 3 points". You're only getting 92.3 if that.
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Old Jan 19, 2013 | 12:03 PM
  #45  
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HG per instructions....


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Old Jan 19, 2013 | 12:08 PM
  #46  
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From: Rotonda West, FL 2015 Z51 M7 3LT
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Interesting... just read the factory owners manual for mine an it states 87 or higher. 93 for best performance obviously.
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Old Jan 19, 2013 | 02:21 PM
  #47  
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shoot, i even tuned my truck on 93. why would i run my car (with higher compression & more factory timing) on anything less? especially when it says "premium" right on the gas cap.
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Old Jan 19, 2013 | 03:15 PM
  #48  
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Oh I'm running 93 in it, just thought it was weird that the book said 87+
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Old Jan 19, 2013 | 03:30 PM
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Old Jan 19, 2013 | 04:01 PM
  #50  
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yep - exactly what mine says.
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