What Does It Mean When the Red Engine Oil Light Comes On?
1 Answers
The reasons for the red engine oil light coming on are as follows: 1. Insufficient oil level, which reduces the oil pump's output or causes it to fail to pump oil due to air intake, leading to a drop in oil pressure; 2. Overheating of the engine, which can thin the oil, causing it to leak excessively through the clearances and resulting in decreased oil pressure; 3. Damage to the oil pump components or excessive gaps due to wear and tear or improper assembly, which can cause the oil pump to fail to deliver oil or deliver insufficient oil; 4. Improper clearance between the crankshaft and the bearings—too tight will increase oil pressure, while too loose will decrease it; 5. Clogged oil filter or oil suction screen, which can also reduce oil pressure; 6. Damaged or malfunctioning relief valve: If the main oil passage relief valve spring is fatigued, softened, or improperly adjusted, or if the valve seat and ball bearing wear or get stuck by debris, preventing proper sealing, the return oil volume will significantly increase, and the main oil passage pressure will drop accordingly; 7. Incorrect oil selection: Using the wrong oil or an inappropriate grade can increase oil leakage due to low viscosity during engine operation, thereby reducing oil pressure.
