Oil gasoline engine oil and engine oil points. Gasoline and diesel engines, it is also at a high temperature, high pressure, high-speed and high load conditions, but is still a large difference. Diesel engine compression ratio is more than 2 times that of gasoline, its main parts subject to high temperature and pressure impact than the gasoline engines much larger, and thus the production of materials in some parts is different. For example, the gasoline engine main bearing and connecting rod bearings available material is relatively soft, good corrosion resistance Babbitt to make diesel engine bearing lead bronze or lead alloy and high-performance materials must be used to make, but the corrosion of these materials performance is poor. To this end, in the diesel oil refining process, the more corrosion agent, generated in the bearing surface in order to use a layer of protective film to reduce the bearing corrosion, and improve the wear resistance. Gasoline oil no such corrosion agent, if added to diesel engines, bearing inuse, it is easy to spot, Ma Hang, even into the film peeling off the adverse consequences of oil will soon become dirty, and the bush-burning axle accidents. In addition, the diesel fuel sulfur content than gasoline, harmful substances in the combustion process, the formation of sulfuric acid or sulfurous acid, a fleeing into the sump together with the high-temperature high-pressure exhaust gas to accelerate the oxidation and deterioration of the oil, so the engine oil refining manufacturing process need to add some anti-oxidation additives, so that the oil is alkaline. If there is acid gas fleeing, may play in role does not result in the oil too quickly oxidized. Gasoline engine oil do not add this additive, because it was neutral, if used in diesel engines, metamorphic failure due to corrosion of the acid gases quickly. So do not use gasoline engine oil filling diesel.