View Poll Results: What Octane do you use in your corvette?
93+
202
53.30%
92
39
10.29%
91
104
27.44%
90
3
0.79%
89
13
3.43%
88
1
0.26%
87
17
4.49%
Voters: 379. You may not vote on this poll
What Octane are you using?
Melting Slicks
Joined: Jul 2007
Posts: 2,116
Likes: 6
From: Waynesville NC
Advanced
Joined: Mar 2003
Posts: 98
Likes: 0
From: Pennsylvania
Axl Jack, I live near Reading PA. However, I am up in your neck of the woods a decent amount as my family has season tickets to the WB Pens.
I guess the advice I got years ago about unbranded gas may be false, at least today anyways. A one time customer of mine who owned a chain of gas stations told me that most of the unbranded gasolines do not have all the additives in their premium fuels (89 octane and higher) as the main stream branded offerings do (like Exxon, Sunoco, etc.)...
I guess the advice I got years ago about unbranded gas may be false, at least today anyways. A one time customer of mine who owned a chain of gas stations told me that most of the unbranded gasolines do not have all the additives in their premium fuels (89 octane and higher) as the main stream branded offerings do (like Exxon, Sunoco, etc.)...
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Burning Brakes
Joined: Mar 2008
Posts: 815
Likes: 1
From: Mesa "highlands" AZ
Because I have witnessed the difference of internal components (over long turn) of top-tier and NON top-tier gasolines, I am a very strong supporter of it's use.
In the event anyone is interested here is GM's current list of top-tier gasoline providers.....
Chevron
Texaco
QuikTrip
MFA Oil Co. (Break Time stores)
Conoco
Phillips 66
76
Entec Stations
Shell
The Somerset Refinery, Inc. (Somerset Oil)
Kwik Trip / Kwik Star
Aloha Petroleum
Tri-Par Oil Co.
Turkey Hill Minit Markets
Severson Oil Co. (Mileage Stations)
Chevron Canada
Shell Canada
Petro-Canada
Sunoco Canada
In the event anyone is interested here is GM's current list of top-tier gasoline providers.....
Chevron
Texaco
QuikTrip
MFA Oil Co. (Break Time stores)
Conoco
Phillips 66
76
Entec Stations
Shell
The Somerset Refinery, Inc. (Somerset Oil)
Kwik Trip / Kwik Star
Aloha Petroleum
Tri-Par Oil Co.
Turkey Hill Minit Markets
Severson Oil Co. (Mileage Stations)
Chevron Canada
Shell Canada
Petro-Canada
Sunoco Canada
Pro
Joined: Dec 2004
Posts: 530
Likes: 2
From: Colorado Springs CO
Preparing to don my flak vest and kevlar helmet...
I have been running mid-grade (I believe it's 87 octane around here - but it might be 89) in my Vettes for the past three years (04 C5 and an 05 C6). I never had a problem with mid-grade, and after reading an article from a very learned source, I am now on my second tank of, yes, Shell regular (85 - maybe 87, with 15% ethanol in the mix, no less). As far as I can tell, the car performs just as well, and there is no sign of knock, etc. I have tried "premium" (91) but I couldn't see any advantages, so I switched back to the lower octane gasolines.
Before you jump down my throat, keep in mind that my Vette is my daily driver; thus, if I can save $4-5 per fillup, that is significant - at least, to me it is. Also keep in mind that I am in Colorado at 6,000+ ft. altitude, which is the likely reason (and was the article's premise) that I can get away with using lower octane gas.
Okay, I am now hunkered down in my foxhole: all of you purists feel free to fire away!!!
Before you jump down my throat, keep in mind that my Vette is my daily driver; thus, if I can save $4-5 per fillup, that is significant - at least, to me it is. Also keep in mind that I am in Colorado at 6,000+ ft. altitude, which is the likely reason (and was the article's premise) that I can get away with using lower octane gas.
Okay, I am now hunkered down in my foxhole: all of you purists feel free to fire away!!!
Drifting
Joined: Apr 2005
Posts: 1,757
Likes: 484
From: Portland Oregon
I have been running mid-grade (I believe it's 87 octane around here - but it might be 89) in my Vettes for the past three years (04 C5 and an 05 C6). I never had a problem with mid-grade, and after reading an article from a very learned source, I am now on my second tank of, yes, Shell regular (85 - maybe 87, with 15% ethanol in the mix, no less). As far as I can tell, the car performs just as well, and there is no sign of knock, etc. I have tried "premium" (91) but I couldn't see any advantages, so I switched back to the lower octane gasolines.
Before you jump down my throat, keep in mind that my Vette is my daily driver; thus, if I can save $4-5 per fillup, that is significant - at least, to me it is. Also keep in mind that I am in Colorado at 6,000+ ft. altitude, which is the likely reason (and was the article's premise) that I can get away with using lower octane gas.
Okay, I am now hunkered down in my foxhole: all of you purists feel free to fire away!!!
Before you jump down my throat, keep in mind that my Vette is my daily driver; thus, if I can save $4-5 per fillup, that is significant - at least, to me it is. Also keep in mind that I am in Colorado at 6,000+ ft. altitude, which is the likely reason (and was the article's premise) that I can get away with using lower octane gas.
Okay, I am now hunkered down in my foxhole: all of you purists feel free to fire away!!!
Race Director
Joined: Jun 2005
Posts: 10,910
Likes: 2,701
From: Phila Suburbs 2023 C8 & 2013 650ix
To all you 93 octane users. You realize that there is no performance gain if you use fuel higher in octane than the engine was designed for which by the way is 91. So why use 93 unless that's the only way to get at least 91? In that case you could use one fill up with 93 and at half tank fill up with 87, result 91. And then back to 93 on the next. It's just pushing buttons. It may just be me but I don't like to just throw money away.
Last edited by Walt White Coupe; Jun 2, 2008 at 09:06 PM.
Safety Car
Joined: Apr 2007
Posts: 3,566
Likes: 3
From: Murfreesboro Tennessee
Drifting
Joined: Apr 2005
Posts: 1,757
Likes: 484
From: Portland Oregon
To all you 93 octane users. You realize that there is no performance gain if you use fuel higher in octane than the engine was designed for which by the way is 91. So why use 93 unless that's the only way to get at least 91? In that case you could use one fill up with 93 and at half tank fill up with 87, result 91. And then back to 93 on the next. It's just pushing buttons. It may just be me but I don't like to just throw money away.