
Medium heat is approximately 140°C~180°C, at which point the oil surface ripples and moves around, with a slight blue smoke rising. When ingredients are added, a large number of bubbles appear around them, accompanied by a sizzling sound. Low-medium heat, around 100°C, is characterized by white bubbles forming on the oil surface, with no sound or blue smoke. High heat, around 200°C, sees the oil surface becoming calm again, with blue smoke rising vigorously. Additional information: Cold oil temperature: Approximately 10-20% heat, the oil surface is calm. Inserting chopsticks into the oil shows no change. Low oil temperature: 30-40% heat, the oil surface is calm with a few bubbles, slight sound, and no blue smoke. Inserting chopsticks into the oil shows almost no bubbles around them. Medium oil temperature: 50-60% heat, the oil surface bubbles mostly disappear, stirring produces sound, and a small amount of blue smoke moves from the sides to the center of the pan. Inserting chopsticks into the oil causes small bubbles to form around them.

I've been driving for almost 30 years. I remember that time when I was driving my old pickup truck on the highway, and suddenly the dashboard showed an oil temperature of 175 degrees, with steam rising from under the hood. I quickly pulled over, popped the hood, and found the fan belt had snapped and the radiator was completely clogged. That temperature was way too high—normal engine oil temperature should be around 90 to 110 degrees. At 175 degrees, the oil becomes as thin as water and can't lubricate the parts properly. If left unchecked, the engine internals would wear out and be ruined. Since then, I always check the cooling system and belt condition during to avoid similar dangers. This kind of overheating usually happens during long uphill drives or when the fan fails. Never push through it—shut off the engine immediately to cool it down and get it fixed at a repair shop.

As a car enthusiast, I usually enjoy speeding on the highway, but when I see the oil temperature spike to 175°C, it really freaks me out! This is no small matter—normal oil temperature should be at most 110°C. A sudden jump this high can accelerate oil oxidation, reduce lubrication effectiveness, and even potentially cause electrical sparks and fires. My modified car once had issues due to overloaded driving, and luckily, I stopped in time. Now, I keep a close eye on the temperature gauge during every trip. My advice: if you encounter the same situation, shut off the engine immediately and call a tow truck to check the radiator and oil pump.

If the oil temperature climbs to 175°C, I believe immediate action is required—check the coolant level, radiator blockage, or whether the oil needs changing. I have a habit of fixing my own car; once I found it was just a faulty temperature sensor causing false high-temperature readings, so don't panic blindly. But when it truly reaches 175°C, oil failure can cause abnormal engine wear, making it dangerous to drive even for a few minutes. Before taking any action, ensure the car is safely parked and the engine has cooled down before testing to avoid major repairs.

In my daily driving, safety is the top priority. An oil temperature of 175°C far exceeds the normal range of around 100°C, indicating a serious risk of overheating. In such cases, the oil film becomes thinner, unable to protect engine components, which increases internal wear. There may also be smoke, or even a fire hazard. After experiencing this firsthand, I've developed a habit: immediately pulling over and turning on hazard lights for assistance when a high-temperature warning appears. Regular , including cleaning the radiator and checking oil levels, can prevent such failures.

From a technical perspective, an oil temperature of 175°C is a critical state—the viscosity of the oil drops sharply, oxidation reactions accelerate, and deposits form, clogging pipelines and significantly reducing lubrication efficiency. Based on case studies I've reviewed, this typically stems from cooling system failures, such as fan malfunctions or radiator blockages, leading to heat accumulation. If this occurs, engine performance will noticeably decline, and prolonged exposure may cause internal damage. It is advisable to immediately shut off the engine to allow cooling and prevent more severe issues.


