Octane Booster?
Thread Starter
Melting Slicks
Joined: Oct 2006
Posts: 2,652
Likes: 629
From: Rural North West NV
Octane Booster?
I live out in the boonies so I have a 200 gal gas tank (and a diesel tank as well) on my property. I fill up my vehicles at home and it is very convenient.
The gas is just regular 87 octane though. I'd like to be able to fill up the Vette so was thinking I could add octane booster to the regular gas. Has anyone done this?
Is it as good as running 91?
Any particular brand better than others?
The gas is just regular 87 octane though. I'd like to be able to fill up the Vette so was thinking I could add octane booster to the regular gas. Has anyone done this?
Is it as good as running 91?
Any particular brand better than others?
Last edited by ChiliPepperGarage; Oct 11, 2020 at 09:09 PM.
Safety Car
Joined: Apr 2007
Posts: 3,640
Likes: 83
From: . New York
It will run on the 87 (but it is suppressing knock and performance).
It will run better on 93.
It wont run any better on above 93.
Ive never used octane booster, but if you could add just enough to make what you put in the vette 93....you should be golden.
It will run better on 93.
It wont run any better on above 93.
Ive never used octane booster, but if you could add just enough to make what you put in the vette 93....you should be golden.
Race Director
Joined: May 2003
Posts: 14,136
Likes: 2,984
From: Iowa
St. Jude Donor '03 thru '26
I personally would never use 87 octane in my C5s, especially in my supercharged one. But, it would get expensive quick to boost every tank full as the quality octane boosters cost big $ over time. The previous owner of my 98 (I've sold it now too) use octane booster in it for track days. I still think I have a can or two of it. It was a high performance C5, a supercharged 383 with 767 rwhp.
Melting Slicks
Joined: Nov 2013
Posts: 2,049
Likes: 316
From: USA
The other downside of octane booster is that it does not burn cleanly and will leave behind orange deposits, which can reduce life of O2 sensors, cats, spark plugs and just sticks to everything. IMO not a problem running once in awhile but I wouldn't want to run it every tank.
Le Mans Master
Joined: Dec 2017
Posts: 5,553
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From: Virginia
2021 C5 of the Year Finalist - Modified
St. Jude Donor '21-'22
Running 93 octane pump gas > 87 octane pump gas + octane booster > 87 octane pump gas by itself.
You CAN run 87 octane by itself, but I really don't recommend it Adding octane booster to get the 87 up to 93 is certainly a better option than just running the the 87. However, as mentioned by others, this will leave deposits, and can get expensive. If you must do this, I would make sure to use some Techron every 3-5 thousand miles. That will at least help clean things out a bit. I would certainly fill up on actual 93 octane pump gas whenever possible. If you can, get 93 octane with no ethanol added.
You CAN run 87 octane by itself, but I really don't recommend it Adding octane booster to get the 87 up to 93 is certainly a better option than just running the the 87. However, as mentioned by others, this will leave deposits, and can get expensive. If you must do this, I would make sure to use some Techron every 3-5 thousand miles. That will at least help clean things out a bit. I would certainly fill up on actual 93 octane pump gas whenever possible. If you can, get 93 octane with no ethanol added.
Race Director
Joined: May 2003
Posts: 14,136
Likes: 2,984
From: Iowa
St. Jude Donor '03 thru '26
Running 93 octane pump gas > 87 octane pump gas + octane booster > 87 octane pump gas by itself.
You CAN run 87 octane by itself, but I really don't recommend it Adding octane booster to get the 87 up to 93 is certainly a better option than just running the the 87. However, as mentioned by others, this will leave deposits, and can get expensive. If you must do this, I would make sure to use some Techron every 3-5 thousand miles. That will at least help clean things out a bit. I would certainly fill up on actual 93 octane pump gas whenever possible. If you can, get 93 octane with no ethanol added.
You CAN run 87 octane by itself, but I really don't recommend it Adding octane booster to get the 87 up to 93 is certainly a better option than just running the the 87. However, as mentioned by others, this will leave deposits, and can get expensive. If you must do this, I would make sure to use some Techron every 3-5 thousand miles. That will at least help clean things out a bit. I would certainly fill up on actual 93 octane pump gas whenever possible. If you can, get 93 octane with no ethanol added.
Here in Iowa it's hard to find 93 octane and when I do it's always 10% ethanol. I can find 91 octane sometimes without ethanol but it cost more than the 93 octane. Currently, I have to drive 15 miles to get 93 octane and of course, another 15 miles to get back home
Thread Starter
Melting Slicks
Joined: Oct 2006
Posts: 2,652
Likes: 629
From: Rural North West NV
Okay, sounds like I should just fill up at the pump instead of at home. I don't drive the car that often and when I do it is just for a pleasure drive or for a blast on the twisties so no big deal to go to a gas station I guess.
Thanks for the replies.
Thanks for the replies.
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Iowa has speed shops. Find one and buy racing gas.
They sell it by the barrel and less. That will improve
your 87 octane fuel.
It's not cheap.
Good luck
They sell it by the barrel and less. That will improve
your 87 octane fuel.
It's not cheap.
Good luck
Le Mans Master
Joined: Mar 2006
Posts: 5,775
Likes: 585
From: Texas
All gas starts out as 87 octane. The fuel depots put additive packages in the tank trucks to make mid grade and premium. I'd do a little internet research to find out what they use to make 93, and then see of those chemicals are available for retail. Would sure be cheaper than buying octane boost by the bottle.
Racer
Joined: Sep 2019
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