Octane Booster's--Do they really work?
For example if 1 bottle says it boosts 10 points, well thats only 1 octane.
So you add one bottle to a full tank of 92 and now you have 93. So you pretty much need like 10 bottles to make a difference, and at that point you would be better off buying race gas.
If you need more information, do an internet search using the same keywords. Find out what the ingredients are in most octane boosters. It's extremely flammable and may harm sensors, converters, etc aside from the extra expense.
Some elect to brew their own concoctions...it's your car to do with as you please.
You might also ask the question in the Drag Racing forum, Performance Results forum or Tuning forum for their advice.
The stuff you buy at AUTOZONE or CHECKER will not give you any significant improvements...probably not even one full point in octane increase. Then figure what that can is adding to the cost of your already $4.00 per gallon of premium fuel.
If you really want to use octane boosters that may actually show some improvements (for whatever reasons you feel the need), look at TORCO products, which are generally highly recommended. A single can is not inexpensive and a case is...well...
Last edited by hotwheels57; May 22, 2008 at 04:34 PM.


A better fuel like a Chevron or a Shell with good cleaners will work better.
Octane boosters only add 1/10th of a point of octane. If you need to get higher that the 91 you need you have a few choices. Get some Shell 93 or race gas (100).
Second you can add some toluene (sp) or similar. You can add it by the gallon and cost less than a 8 ounce can of "octane booster".
Do a Google search for homemade boosters. Plenty of recipes out there.


The Best of Corvette for Corvette Enthusiasts
Torco is considered more of a "Race Fuel Concentrate" as according to the company. Here's a table to show how to mix it and what the octane ratings come out to.
One Qrt of Torco mixed with 15 gallons of 93 = 100 octane
One Qrt of Torco mixed with 10 gallons of 93 = 103 octane
One Qrt of Torco mixed with 5 gallons of 93 = 107 octane
I used this on my Blown Cobra making 630RWHP for about a year. It does work! Making 18 lbs of Boost and Timing at 23*...I had not one issue! After I swapped blowers and started making 741 to the tires, I went to straight C16 just to be on the safe side. Hands down, Torco is the real deal.
Last edited by Hysteria; May 22, 2008 at 08:33 PM.
Now if you're FI then Torco will definitely help.
For me if I expect to do spirited driving I'll add 5 gals of 100 race fuel to 1/2 tank of 91.


i wouldnt waste your money
So from 90->91.
I don't use these things. I use the gas they bring to the base, when I want some good gas I run Shell through it every now and then, but not that often.














