FUEL FOR SPORTS CARS Russian patent published in 2008 - IPC C10L1/04 C10L1/16 C10L1/18 C10L1/223 

FIELD: chemistry.

SUBSTANCE: fuel contains, wt %: isooctane - 1-35, motor oil for two-stroke engine - 0.05-0.5, high-octane oxygenate - 10-30, aromatic hydrocarbons - 10-45, isomerizate - up to 25, alkylate - up to 10, and catalytic reforming gasoline - to 100. As aromatic hydrocarbons the fuel preferably contains C₇-C₉ aromatic hydrocarbons fraction; as high-octane oxygenate, C₅-C₆ dialkyl ether or its mix with C₁-C₅ aliphatic alcohols. The fuel also contains motor oil for two-stroke engine having maximum viscosity 11 mm²/sec at 100°C. In some cases the fuel may contain up to 1.5 wt % N-methyl aniline.

EFFECT: antiknock quality increase without applying lead and other metal-based additives; increase in combustion speed and purity; decrease in deposit formation on cylinders, pistons, and spark-plugs.

5 cl, 2 tbl