
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.

I enjoy tinkering with my car's maintenance myself. The ideal oil temperature usually fluctuates safely between 85 to 105 degrees Celsius. The key is to monitor whether the sensor readings remain stable. My older vehicle has an external thermometer installed - it typically runs around 90°C in city driving and can reach 100°C on highways. Why does this temperature matter? If too high, the oil thins and damages engine components; if too low during cold starts, insufficient lubrication increases wear. After I upgraded the radiator, maintaining 95°C proved perfect. Temperatures exceeding 105°C during hot weather or heavy loads serve as warnings - immediately check oil level, cooling fan, and radiator. I recommend using full synthetic oil for better high-temperature tolerance. Don't wait for warning lights; make it a habit to monitor gauge variations during regular driving.

I just learned to drive not long ago, and after asking friends, I found out that the normal oil temperature for a car is around 85 to 105 degrees Celsius. When driving normally, the dashboard displays it, and I've noticed it usually fluctuates around 90 degrees. Too high can damage the engine, and too low isn't good either. When starting, it might be around 60 degrees, but it rises within a few minutes of driving. If it consistently exceeds 110 degrees and the warning light comes on, you should stop to let it cool down. Be extra careful during hot summer days—if the temperature goes over 100 degrees, check the oil level and cooling system more often. Simply put, as long as the car's thermometer shows between 85-105 degrees, it's fine. If it's abnormal, get it repaired promptly.


