Check the listing for details. RaceGas Competition Ultra Race Concentrate 32oz Can Pack of 2 200032. Condition: New. Listed at 71.27 USD. $ImageURL1$RaceGas Competition Ultra Race Concentrate 32oz Can Pack of 2 200032PART NUMBER: 200032BRAND: Race GasDESCRIPTIONConcentrate Octane Booster Motorsports Fuel and Equipment, makers of RACE-GAS Race Fuel Concentrate are proud to announce the release of RACE-GAS ULTRA Race Fuel Concentrate. RACE-GAS ULTRA is specifically designed for the requirements of very high compression, boosted or nitrous engines. ULTRA, when mixed with pump gasoline, will create racing fuel with octane between 108 and 112 r+m/2. Like their original product, ULTRA increases the octane, chemical oxygen and chemical energy of the fuel to equal commercially distilled racing fuel. RACE-GAS ULTRA is a much different formula than original RACE-GAS. "In testing Race Gas found the requirements of very high compression engines were different than engines with lower compression or lower boost. Race Gas needed to create a formula that could achieve the high octane while still meeting our requirements of high chemical energy and high chemical oxygen in a consistent and predictable way. Race Gas chose to use the highest quality pharmaceutical grade chemicals and to avoid using alcohols or naphthalene which don't meet our design standards" said Dan Muldowney. "Further, when Race Gas did our engine dyno testing Race Gas did "like for like" testing against commercial racing fuel. Race Gas first did a series of "pulls" with commercial racing fuel. Race Gas then drained the fuel and fuel rail and added RACE-GAS ULTRA blended with pump gas. Race Gas then repeated the test. Race Gas did not change the engine set up or tune during testing." "Race Gas found that Race Gas were able to create the same horsepower and torque as commercial racing fuel and that the fuel performed consistently under different conditions." 1 Can RACE-GAS ULTRA + 4 gallons of 89 = 4 gallons of 108 Octane R+M/2 1 Can RACE-GAS ULTRA + 4 gallons of 91 = 4 gallons of 110 Octane R+M/2 1 Can RACE-GAS ULTRA + 4 gallons of 93 = 4 gallons of 112 Octane R+M/2