oil temperature gauge reading high

• 2022-05-09

If the oil filter is blocked, the oil will enter the main oil passage directly through the bypass valve. The impurities in the oil will aggravate the wear of the engine. Solution: clean the oil filter regularly and replace the filter element to ensure its normal operation. The piston ring is not tightly closed and the cylinder leaks, resulting in excessive crankcase ventilation. The oil is excluded from the fan with the ventilation, which is more likely to lead to excessive oil temperature. Solution: regularly check the tightness of piston ring and cylinder to avoid air leakage. Once it occurs, replace or repair it in time. When the fit clearance of bearing bush is too large, the oil drain is too much, which will lead to too low oil pressure and failure to form normal oil film. At least, it will aggravate the degree of wear, and at worst, it will damage the surface of ablative friction pair. Solution: ensure that the fit clearance between bearing bush and journal is just, and repair the problem in time. The engine load is too heavy, resulting in too high water temperature and oil temperature. Solution: use the engine reasonably to avoid overload operation, especially long-term overload operation. For example: overload transportation, long-term overload transportation, etc. machines, like people, should also rest.

Only after rest can they work better. The engine assembly is too tight, the friction resistance of the working room is large, the heat generated is high, and the temperature transmitted to the oil is too high, increasing the heat load of the oil. Solution: if the problem occurs in a new car or engine overhaul, it can be solved after running in for a period of time. If it is still the same after running in, go to the repair shop quickly. Using incorrect engine oil or inferior engine oil, the impurities of engine oil are too large, which will generate more heat during friction, resulting in the rise of engine oil temperature. Solution: reasonably select genuine engine oil with correct grade and viscosity grade. It is best to buy it through formal channels. Don't buy inferior products for cheap, which will cause indelible damage to the vehicle.

The temperature of automobile oil is as important as that of coolant. In addition to lubrication, the most important function of engine oil is heat dissipation. The internal parts of the engine will generate a lot of heat during operation. Because many parts cannot directly contact with the cooling system, the heat cannot be dissipated directly through the cooling system. Therefore, the heat needs to be taken away by the oil and dissipated through heat exchange between the oil radiator and the cooling system, Therefore, the oil temperature is usually higher than the coolant temperature.