What is the normal temperature range for car engine oil?
2 Answers
Car engine oil temperature is normal between 70 to 90 degrees Celsius. The reasons for excessively high engine oil temperature are: 1. Insufficient oil quantity or excessively high oil level can easily lead to overheating; 2. Malfunction of the oil pump or insufficient pumping volume can cause inadequate oil pressure and poor cooling; 3. Blockage of the oil cooler prevents normal cooling due to insufficient oil pressure; 4. Clogged oil filter allows impurities to enter the main oil channel through the bypass valve, accelerating engine wear; 5. Excessive bearing clearance leads to excessive oil leakage; 6. Overloaded engine causes excessively high coolant and oil temperatures; 7. Overly tight engine assembly; 8. Use of incorrect or inferior quality engine oil.
As an ordinary commuter who drives daily, I've noticed that the normal oil temperature for a car is between 85°C and 105°C. In city traffic jams, it might rise above 90°C, while on the highway it usually drops to around 95°C, which is quite common. Higher temperatures in hot weather are normal, but exceeding 110°C is a cause for concern. Once, during a summer road trip, I forgot to top up the coolant, and the temperature soared to 115°C, triggering the warning light. I was so scared that I immediately pulled over to check the fan and oil level. Regularly monitoring the temperature gauge on the dashboard is crucial. If it frequently exceeds 105°C, it could indicate a cooling system issue, and it's advisable to visit a repair shop. In cold conditions, like during winter startup, temperatures around 60°C are fine, but they should rise after driving for a while. If they don't, the oil might not be thick enough, affecting lubrication.
