http://www.torquecentral.com/showthread.php?t=21629 xxxxxxxxxxxxxxxxxxxxxxxxx 104 octane booster, is it worth it? Make it yourself Try these homebrew boosters.. Formula #1 - Toluene 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 Toluene. 12-16 ounces will only raise octane 2-3 *points*, i.e. from 92 to 92.3. Usually mixed with Toluene 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 toluene or xylene, but oxygenate effect makes the gasoline burn better and produce more energy. Formula #4 - Methanol or Ethanol R+M/2.........101 Cost...........$0.60 - $1.75/gal Mixtures with 92 Octane Premium 10%...........94.3 Octane (Methanol) 10%...........94.7 Octane (Ethanol) 20%...........Not Recommended Notes: Methanol is wood alcohol. Ethanol is grain alcohol and found in Gasohol in 10% ratios. Both alcohols are mildly corrosive and will eat gas tank linings, rubber and aluminum if used in excessive ratios. Main ingredient in "Gas Dryers", combine with water. Formula #5 - Isopropyl Alcohol and Tertiary Butyl Alcohol R+M/2.........101 Cost...........$0.60-$1.50/gal Mixtures with 92 Octane Premium 10%...........94.5 Octane 20%...........Not Recommended 30%...........Not Recommended After playing around with a few mixtures this one works great for me (this is the basic formula of one of the popular octane booster products). To make eight 16 ounce bottles (128 oz = 1 gal): 100 oz of toulene for octane boost 25 oz of mineral spirits (cleaning agent) 3 oz of transmission fluid (lubricating agent) This product is advertised as "octane booster with cleaning agent *and* lubricating agent!". Diesel fuel or kerosene can be substituted for mineral spirits and light turbine oil can be substituted for transmission fluid, eight bottles for under $3.00, works fine in my 427 cobra, 350 t bucket, 1983 454 truck, 4cyl jeep and the bad a$$ed snapper riding mower..........heck of a profit margin huh ? Now you guys try not to blow yourselves up.....ok.... bud4660 is offline Reply With Quote bud4660 View Public Profile Find More Posts by bud4660 Old 04-30-2004, 02:34 PM #2 Exevious Intellectum valde amat Exevious's Avatar Join Date: Mar 2001 Location: Keller, TX USA Posts: 7,879 Exevious has a reputation beyond reputeExevious has a reputation beyond reputeExevious has a reputation beyond reputeExevious has a reputation beyond reputeExevious has a reputation beyond reputeExevious has a reputation beyond reputeExevious has a reputation beyond reputeExevious has a reputation beyond reputeExevious has a reputation beyond reputeExevious has a reputation beyond reputeExevious has a reputation beyond repute Send a message via AIM to Exevious Re: 104 octane booster, is it worth it? Make it yourself dont forget with those 'boosters' and their high alcohol content... they are harsh on pistons, rings and cylinder walls. Because they 'wash' the oil from these areas... I recommend sticking with the lead or low lead alternatives. __________________ 1999 Camaro SS #2401 - 1 of 339 Bright Red, 6-speed, T-tops, SLP Mudflaps. (SOLD) 2002 Mercedes Benz E-Class - Custom Paint, debadged, Factory Option 20's, Factory Option Flaps on order! 2000 Roadstar 1600 Silverado - Custom Vintage Style (Star marketing precursor) 2003 Suzuki DRZ400S Adventure-Ride the World! 60MPG 2005 Yamaha FJR1300A Blue Rocket! USN/USNR Submarine Warfare Center Silverdale, WA 1993-1994 The World Watchers VQ-1 NAS Whidbey Island 1995-1998 "You don't have to be the smartest person in the world, just the smartest person in the room..." "si hoc legere scis nimium eruditiones habes." Exevious is offline Reply With Quote Exevious View Public Profile Visit Exevious's homepage! Find More Posts by Exevious Old 04-30-2004, 02:55 PM #3 Maxed Administrator Maxed's Avatar Join Date: Feb 2001 Location: Southlake, TX Posts: 939 Maxed will become famous soon enoughMaxed will become famous soon enough Re: 104 octane booster, is it worth it? Make it yourself Some great info there Bud...