Hey guys. I ran toluene for the first time this week. I ran 9 gallons 93 + 1 gallon toluene (=94.2 octane). It's runs great, and it got rid of a slight ping at high rpms. Now I'm gonna try using xylene next, simply because it's easier to find around here, plus toluene's is only 114 octane, xylene is 117.

Where can I find it in bulk, like 55 gallon drum size? It's like $6 a gallon around here.

 

I was wondering if when you add toluene if you have to add some sort of oil, or if you just mixed it strait in with the gas

~Thanks,
AdAm

 

you add it straight to the gas. and how did you calculate 94.3 octane? i thought i read somewhere that having a 10% toluene mix in 93 octane will only raise octane like .3

 

FORMULA 1
Toulene
R+M/2...114
Cost...$2.50/gal
Mixtures with 92 Octane Premium
10%...94.2 Octane
20%...96.4 Octane
30%...98.6 Octane
Notes: Common ingredient in Octane Boosters in a can. 12-16 ounces will only raise octane 2-3 *points*, I.e. from 92 to 92.3. Often costs $3-5 for 12-16 ounces, when it can be purchased for less than $3/gal at chemical supply houses or paint stores.

FORMULA 2
Xylene
R+M/2...117
Cost...$2.75/gal
Mixtures with 92 Octane Premium
10%...94.5 Octane
20%...97.0 Octane
30%...99.5 Octane
Notes: Similar to Toulene. 12-16 ounces will only raise octane 2-3 *points*, I.e. from 92 to 92.3. Usually mixed with Toulene and advertised as *race formula*.

FORMULA 3
Methyl-tertiary-butyl-ether (MTBE)
R+M/2...118
Cost...$3.50/gal
Mixtures with 92 Octane Premium
10%...94.6 Octane
20%...97.2 Octane
30%...99.8 Octane
Notes: Oxygenate. Very common in octane booster products. Has lower BTU content than toulene or xylene, but oxygenate effect makes the gasoline burn better and produce more energy.