Toulene or Xylene?
Thread Starter
Drifting
Joined: Feb 2001
Posts: 1,421
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From: Henderson, NV
Toulene or Xylene?
Hi all,
I have access to buy either one of these at a good deal, so I'm wondering which is better to use? I think one is a higher octane than the other, but which one's which? How high is it good to boost the octane rating to? My fuel around here is 91 octane in the super. Do you add it before or after filling? It needs to go into both fuel tanks evenly, right?
Steve
I have access to buy either one of these at a good deal, so I'm wondering which is better to use? I think one is a higher octane than the other, but which one's which? How high is it good to boost the octane rating to? My fuel around here is 91 octane in the super. Do you add it before or after filling? It needs to go into both fuel tanks evenly, right?
Steve
Pro
Joined: Jun 2001
Posts: 697
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From: College Station Tx
Re: Toulene or Xylene? (Blackjetvette97)
Xylene actually has 3 different isomers which each have different octane ratings, though statistically unless care was given to isomeric composition (unlikely) you will have generally 117-119 octane ((R+M)/2)
Toluene only has one isomer, so whatever brand you get will be 116 octane.
Changes in effective octane are on a strictly volumetric basis - e.g.
Final octane = ((gallons of gas * octane of gas) + (gallon of additive * octane of additive)) / (gallons of gas + gallons of additive)
Toluene only has one isomer, so whatever brand you get will be 116 octane.
Changes in effective octane are on a strictly volumetric basis - e.g.
Final octane = ((gallons of gas * octane of gas) + (gallon of additive * octane of additive)) / (gallons of gas + gallons of additive)
Racer
Joined: Jun 2001
Posts: 473
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From: Waterloo Ontario
Re: Toulene or Xylene? (Blackjetvette97)
I just go to my local oil products distributor (Monarch Oil) and get 5 gallon tins of both Xylene and Toulene and mix them 50/50 with each other in a gas can that I take to the track. Using Sunoco 94, by adding 5 liters (sorry, I've been metricated up here) it boosts me to 95.4 and 10 liters boosts to 96.8 on a tank.
imp.
imp.
Burning Brakes
Joined: Dec 2000
Posts: 862
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From: Miami Florida
Re: Toulene or Xylene? (SurfnSun)
check out some interesting info here... http://members.aol.com/prschekllr/octane.html
Melting Slicks
Joined: Jan 2001
Posts: 2,635
Likes: 2
From: Aloha, Oregon
Re: Toulene or Xylene? (Blackjetvette97)
i take 2 gallons of Xylene or Toluene (i hve been switching back and forth to see if any different; no difference) with me to the gas station when i'm almost empty. i pour in the additive first, then fill up with pump gas. this proves to mix real well.
Safety Car
Joined: Aug 1999
Posts: 4,862
Likes: 118
From: Texas
Re: Toulene or Xylene? (Blackjetvette97)
I run 15%+/- Toluene when I am running nitrous. This seems to work great for me.
Don't add that much to your gas unless you are running a power adder. Otherwise your car will run rich.
If you ping on pump gas, just add small amounts (16oz.) until the pinging stops.
[Modified by Cam Potter, 10:26 AM 2/15/2002]
Don't add that much to your gas unless you are running a power adder. Otherwise your car will run rich.
If you ping on pump gas, just add small amounts (16oz.) until the pinging stops.
[Modified by Cam Potter, 10:26 AM 2/15/2002]
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Safety Car
Joined: Aug 1999
Posts: 4,862
Likes: 118
From: Texas
Re: Toulene or Xylene? (Nekbyter)
Toluene is already present in pump gas in about 30% concentrations. You can up this to about 50% and it will still be considered gasoline so it is safe for seals, lines and O2 sensors.
I don't know about Xylene so I avoid it.
I don't know about Xylene so I avoid it.
