Basic Information of Gasoline Products               Basic Information of Diesel Products Gasoline is a special fuel applied in combustive engines. It is generally water-white transparent in nature with the density between 0.71-0.75g/cm3 and a unique aromatic smell. It can be divided into aviation gasoline and automotive gasoline, which is sold in service stations. The current specification for petroleum products is GB 17930-1999 “lead-free automotive gasoline” under which there are 90#, 93# and 95# gasoline. The specification of 97# and 98# gasoline is in line with enterprise specification. The automotive gasoline is categorized based on research method octane number.   Gasoline Performance Needed for Automotives: 1. Anti-explosion 2. Evaporation 3. Anti-oxidation and Stabilization 4. Anti-corrosion and environmental requirement   Items to be examined in terms of gasoline quality are as follows: Anti-explosion performance (research method octane number, motor method octane number, anti-explosion exponent), sulfur content, steam pressure, olefin, aromatics, phenol content, corruption and distillation range, etc.   How to choose gasoline: Gasoline octane number is supposed to be compatible with the compression ratio of the engine. If the engine with high compression ratio is applied with low octane number gasoline, the engine tends to knock, which will cause malfunctions like piston sintering and piston ring breakage and impairment to engine parts. If engines with low compression ratio is applied with high octane number gasoline, the ignition timing will be altered, which will cause incremental sedimentation inside the engine cylinder thus shortening engine life. Gasoline numbers recommended by China Automobile Industry Society and China Environmental Protection Industry Society for domestic and foreign brand cars are listed in the form below:   Cars Compression Ratio Gasoline Number Recommended FAW Red flag Mingshi1.8 9.0 93 FAW Red flag Mingshi 2.0 / 2.4 9.5 No lower than 93 FAW Mazda2.3 10.6 93-97 FAW Xiali 7101/7131/2000 9.3-9.5 No lower than 93 FAW Vitz1.0 /1.3 10.0/9.3 No lower than 93 FAW –Volkswagon Jetta/CI／CT／AT 8.5-9.0 93 FAW –Volkswagon Bora1.6/1.8/1.8T 9.3-10.3 93-97 FAW –Volkswagon Golf1.6/2.0 10.5 93-97 FAW –Volkswagon Audi A4/ A6 10.0/10.5 93-97 Shanghai Volkswagon Santana/2000 9.0/9.5 No lower than 93 Shanghai Volkswagon Passat 1.8/1.8T 10.3/ 9.3 93-97 Shanghai Volkswagon Passat 2.0/2.8 10.3/10.1 93-97 Shanghai Volkswagon POLO1.4/1.6 10.4/10.3 93-97 Shanghai Volkswagon Golf1.6 9.5 No lower than 93 Shanghai Buick Sail 1.6 9.4 No lower than 93 Shanghai Buick Regal 2.0/2.5/3.0 9.5 No lower than 93 Dongfeng Blue bird2.0/Sunshine2.0 9.5/9.8 No lower than 93 Dongfeng Piccaso 1.6/2.0 10.5 93-97 Dongfeng 1.6/Elysee VTS1.6 9.6/10.5 93-97 Dongfeng Xsara 2.0 10.8 93-97 Dongfeng Qianlima1.6 9.8 No lower than 93 Shenlong Fukang1.4/1.6 9.3/9.6 93 Shanghai Chery1.6 9.5 No lower than 93 Tianjin Toyota Vios 1.3/1.5 9.3/9.8 No lower than 93 Beijing Jeep2500 8.5 93 Hyundai Sonata 2.0/2.7 10.1/10.0 93-97 Chana Ford Carnival1.3/1.6 10.2 / 9.5 93-97 Fiat Siena1.3 16V/1.5 10.6/10.0 No lower than 93 Fiat Palio1.3 16V/1.5 10.6/10.0 No lower than 93 Fiat Weekend1.3 16V/1.5 10.6/10.0 No lower than 93 Guangzhou Honda Accord 98 2.0/2.3/3.0 9.1/8.9/9.4 93 Guangzhou Honda Accord 03 2.0/2.4/3.0 9.8/9.7/10.0 No lower than 93 Guangzhou Honda Odyssey 2.3 9.5 No lower than 93 Geely Meiri1.3／Youliou>1.3 9.3 93 Chana Suzuki Alto0.8/ Lingyang1.0/1.3 9.4 / 9.0/9.0 93 Changhe Suzuki Beidouxing CH6350B 9.3 93 Huachen Zhonghua2.0/2.4 9.5/9.5 No lower than 93 Hafei Saima1.3 9.5 No lower than 93 Hainan Mazda 3 Pulima/323/Fumeilai 9.1 / 9.3 / 9.1 No lower than 93 BMW 3、5、7 Series 10.8/10.8/10.5 97 Daewoo Prince 2.0 / Lanos 1.5 8.8/9.5 93-97 Honda Civic 1.6 / Mileage 3.5 9.4/9.6 93-97 Cefiro 2.0/3.0 9.5/10 93-97 Toyota Lexus IS200/GS300/LS430 10/10.5/10.5 97 Toyota Century/Crown 8.6/10.0 93-97 Toyota Corolla 1.6/Campy2.2GL/2.4 10.5/9.8 93-97 Benz E280／E320 10.0 97 Volvo S40 9.3 No lower than 93 Ford    WINDSTAR V6/TAURUS V6 9.0/9.3 93-97 Lincoln    Continetal V8/Mark V8 9.0/9.8 93-97 Opel     1.8 10.5 97   Basic Information of Diesel Products                     Basic Information of Gasoline Products Diesel is a special fuel for compression ignition engine (i.e. diesel engine). Diesel, appearing water-white, light yellow or dark brown, is divided into light and heavy diesel. Light diesel is applied in high-speed diesel engines with a speed above 1000r/min while light diesel is applied in low-speed and mid-speed engines. Diesels sold in service stations are light diesels. The current specification for light diesel products is GB252-2000 “light diesel”, under which diesels are categorized into 10#, 5#, 0#, -10#, -20#, -35# and -50# based on condensation point of diesels. The recommended specification of GB/T 19147-2003 for automobile diesels is issued on May 23rd, 2003 and will be implemented on October 1st, 2003.   Requirements on Light Diesels for Diesel Engine: Due to the fundamental difference between working process of diesel engines and gasoline engines, the quality requirement for diesel is different from that of gasoline as well, specifically: 1. Good combustibility 2. Good low-temperature mobility 3. Appropriate evaporation 4. Good stability 5. Appropriate viscosity 6. Good anti-corrosion performance   Items to be examined in terms of diesel quality are as follows: Cetane value, oxidization stability, sulfur content, color, acidity, ash, copper sheet corrosion, solidifying point, cold filter plugging point, flashing point and distillation range, etc. How to Choose Light Diesel: The following principles need to be conform to in selecting diesels according to requirements of the GB252-2000 specification: 1. 10# light diesel is compatible in diesel engines with preheating units; 2. 5# light diesel is applicable in areas where the risk possibility is 10% and the lowest temperature is above 8℃; 3. 0# light diesel can be applied in areas where the risk possibility is 10% and the lowest temperature is above 4℃; 4. -10# light diesel is applicable in areas where the risk possibility is 10% and the lowest temperature is above -5℃; 5. -20# light diesel can be applied in areas where the risk possibility is 10% and the lowest temperature is above -14℃; 6. -35# light diesel can be applied in areas where the risk possibility is 10% and the lowest temperature is above -29℃; 7. -50# light diesel can be applied in areas where the risk possibility is 10% and the lowest temperature is above -44℃;