What Causes Low Oil Pressure in Diesel Engines?

1 Answers
MacHeidi
07/30/25 3:28am
Diesel engine low oil pressure may result from: 1. Prolonged oil change intervals leading to oil degradation; 2. Contaminated engine lubrication passages causing restricted oil flow; 3. Worn oil pump gears failing to achieve specified pressure; 4. Clogged oil filter due to overdue replacement; 5. Loose oil pump inlet/outlet bolts causing leakage; 6. Improperly adjusted oil pressure relief valve setting. Diesel engines convert diesel fuel combustion into mechanical energy, offering advantages of high torque and superior fuel efficiency. The working principle shares similarities with gasoline engines, with both completing four-stroke cycles (intake, compression, power, and exhaust) per operating cycle.
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