octane - gasoline
Thread Starter
Team Owner
Joined: Sep 2002
Posts: 22,209
Likes: 12
From: OBAMA IS HITLER
octane - gasoline
What is the minimum octane rating that should be used for our vettes? I've been putting in 93 and 94.....and I wonder if its overkill or not. I'm guessing 87 might be too low....so is it 89 thats recommended? Or must it be higher?
:chevy
[Modified by bradvette, 10:59 PM 11/3/2002]
:chevy
[Modified by bradvette, 10:59 PM 11/3/2002]
Burning Brakes
Joined: Oct 2002
Posts: 810
Likes: 10
From: Denver CO
Re: octane - gasoline (bradvette)
I think this thread may answer your question:
http://forums.corvetteforum.com/zerothread?id=406607
:cheers:
http://forums.corvetteforum.com/zerothread?id=406607
:cheers:
Melting Slicks
Joined: May 2001
Posts: 2,143
Likes: 7
From: San Diego CA
Re: octane - gasoline (bradvette)
Mine runs well on 91, pings (very slightly under hard acceleration) on 89. It's got 150K miles so there may be some built up deposits in the combustion chambers.
Drifting
Joined: Feb 2000
Posts: 1,994
Likes: 0
From: Charleston, WV
Re: octane - gasoline (John Row)
Most automakers say to run the lowest octane that will not ping...... unfortunately I have to run 93. I have gottne stuck for money a few times and ran lesser and it keeps my foot out of it. ( I have my knock sensor unhooked) :seeya
Melting Slicks
Joined: Sep 2001
Posts: 3,054
Likes: 3
From: atlanta ga
Re: octane - gasoline (vettmech)
you are using the right stuff. the cheaper stuff will gum up the motor over time. the cleaner the burn the better off you are. the money you save on cheap gas you will spend on tune ups and repairs. only the best for my beast.
Race Director
Joined: May 2001
Posts: 14,165
Likes: 9
Re: octane - gasoline (stillthere)
you are using the right stuff. the cheaper stuff will gum up the motor over time. the cleaner the burn the better off you are. the money you save on cheap gas you will spend on tune ups and repairs. only the best for my beast.
Pro
Joined: Aug 2002
Posts: 589
Likes: 0
From: Campbell CA
Re: octane - gasoline (bradvette)
I never read the octane rating in the owners manual. But if you have modded your motor and increased compression, or it's running forced induction, then you need to run the higher octane.
All octane does is prevent detonation. So with higher compresion motors, you need a higher octane. There is no HP in octane.
If your car can run on 89, and I believe it can in stock format, then it wont hurt anything. Nathen pointed out that there is a difference between cheap fuel, and low octane. This is VERY true. Budget stations use a higher particulate content gas which then forms all the deposits in the morot, and fowls things up. Personally i use Chevron, because they are a high quality fuel, and that quality is consistant.
Running higher octane than you need will gain you nothing but less money.
Hope this helps.
:cheers:
All octane does is prevent detonation. So with higher compresion motors, you need a higher octane. There is no HP in octane.
If your car can run on 89, and I believe it can in stock format, then it wont hurt anything. Nathen pointed out that there is a difference between cheap fuel, and low octane. This is VERY true. Budget stations use a higher particulate content gas which then forms all the deposits in the morot, and fowls things up. Personally i use Chevron, because they are a high quality fuel, and that quality is consistant.
Running higher octane than you need will gain you nothing but less money.
Hope this helps.
:cheers:
Team Owner
Joined: Sep 2001
Posts: 62,143
Likes: 1,729
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: octane - gasoline (bradvette)
Youre using the right stuff. L98s compression isnt extraordinarily high.
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