The cost of fuel consumption accounts for a large proportion in the cost of automobile transportation. Therefore, automobile design and use departments have taken various technical measures to reduce fuel consumption. As far as the current technical level is concerned, according to the engine power, the fuel consumption per horsepower hour is about 200 ~ 250g of gasoline and about 150 ~ 200g of diesel.
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Lubricating material
The lubricating medium used between the friction surfaces of relatively moving parts of automobiles has the functions of reducing friction resistance and protecting friction surfaces, and has the functions of sealing, absorbing and dispersing friction heat and cleaning parts. Automobile lubricating oil mainly includes engine oil, gear oil and grease. Various lubricating materials have various specifications and different application ranges, so they should be correctly selected and replaced regularly according to technical specifications.
Solid graphite and molybdenum disulfide are often used as lubricants or lubricant additives. Graphite has good pressure resistance, wear resistance and water resistance, and is often mixed with grease for lubrication between automobile leaf springs.