octane rating
51Compression ratio — For compression ratio in data compression, see data compression ratio. The compression ratio of an internal combustion engine or external combustion engine is a value that represents the ratio of the volume of its combustion chamber from its… …
52Methylcyclopentadienyl manganese tricarbonyl — Methylcyclopentadienyl manganese tricarbonyl …
53Common ethanol fuel mixtures — Summary of the main ethanol blends used around the world There are several common ethanol fuel mixtures in use around the world. The use of pure hydrous or anhydrous ethanol in internal combustion engines (ICE) is only possible if the engine is… …
54Fuel economy-maximizing behaviors — (also known as green driving) describe techniques that drivers can use to optimize their automobile fuel economy. The energy in fuel consumed in driving is lost in many ways, including engine inefficiency, aerodynamic drag, rolling friction, and… …
55Catalytic reforming — is a chemical process used to convert petroleum refinery naphthas, typically having low octane ratings, into high octane liquid products called reformates which are components of high octane gasoline (also known as petrol). Basically, the process …
56Tractor vaporising oil — (or TVO) is a fuel for internal combustion engines, produced from paraffin (kerosene). In the United Kingdom and Australia, after the Second World War, it was commonly used for tractors until diesel engines became commonplace. In Australian… …
57Alcohol fuel — Although fossil fuels have become the dominant energy resource for the modern world, alcohol has been used as a fuel throughout history. The first four aliphatic alcohols (methanol, ethanol, propanol, and butanol) are of interest as fuels because …
58Hispano-Suiza 12Y — The Hispano Suiza 12Y was a French aircraft engine in the pre WWII era. Developed from the earlier, and somewhat smaller, 12X, the 12Y became the primary 1,000 hp (750 kW) class engine and was used in a number of famous aircraft, including the… …
59Koenigsegg CCX — The Koenigsegg CCX is a mid engined roadster from Swedish car manufacturer Koenigsegg. The CCX has been engineered to comply with the US regulation and market demands and is an evolutionary design that replaced the Koenigsegg CCR. CCX is an… …
60automobile — automobilist /aw teuh meuh bee list, moh bi list/, n. /aw teuh meuh beel , aw teuh meuh beel , aw teuh moh beel, beuhl/, n. 1. a passenger vehicle designed for operation on ordinary roads and typically having four wheels and a gasoline or diesel… …
