Basic knowledge of diesel products
Diesel engine is used in compression ignition engine (i.e. special fuel diesel engine). Diesel for the appearance of the water white, pale yellow or brown liquid. Diesel is divided into ordinary diesel and diesel two. Ordinary diesel for tractors, locomotives, construction machinery, ships and units, isobaric combustion rule engine and GB19756 in vehicles and low-speed truck, in addition to the engine's compression ignition engine used for diesel vehicles. The general gas station sales of diesel diesel or diesel vehicle. Standard diesel products currently executing GB 252-2011 "standard" ordinary diesel, diesel in the standard grades into the No. 10, No. 5, No. 0, No. -10, No. -20, No. -35, No. -50, diesel products current standards for "GB 19147-2009" standard diesel vehicle, diesel the standard grades into the No. 5, No. 0, No. -10, No. -20, No. -35, No. -50. Grade division on the basis of diesel is the freezing point of diesel fuel.
Light diesel oil for diesel engine on
The working process of diesel engine and gasoline engine is essentially different, therefore the quality requirements for fuel and gasoline are different. Requirements for light diesel oil for diesel engine is:
1, Good combustion;
2, Good low-temperature fluidity;
3, Evaporation of the appropriate;
4, Food stability;
5, appropriate viscosity;
6, Aood corrosion resistance.
Inspection items characterization of light diesel oil quality
Main test items characterization of light diesel oil quality: Sixteen octane, oxidation stability, sulfur content, color, acidity, ash, copper corrosion, solidifying point, cold filter plugging point, flash point, distillation range, lubrication etc..
How to choose the number of light diesel fuel
According to GB 252 and GB 19147 standards, the diesel brand to comply with the following principles:
1, No. 10 diesel oil preheating device for diesel engine;
2, No. 5 diesel oil is suitable for risk rate for the use of area 10% in the lowest temperature above 8 ℃;
3, No. 0 diesel oil is suitable for risk rate for the use of area 10% in the lowest temperature above 4 ℃;
4, -10 light diesel oil is suitable for risk rate for the use of regional minimum temperature 10% ℃ in -5;
5, -20 light diesel oil is suitable for risk rate for the use of regional minimum temperature 10% ℃ in -14;
6, -35 light diesel oil is suitable for risk rate for the use of regional minimum temperature 10% ℃ in -29;
7, -50 light diesel oil is suitable for risk rate for the use of regional minimum temperature 10% ℃ in -44.
