Is a diesel car's water temperature of 90 degrees normal?
2 Answers
It is relatively normal for a diesel car's water temperature to be around 90 degrees Celsius. The engine used in cars is a water-cooled engine. Water-cooled engines rely on the continuous circulation of coolant within the engine for heat dissipation. The coolant in a water-cooled engine has two circulation paths within the engine: one is the major circulation, and the other is the minor circulation. Below is an introduction to the related content: 1. Minor circulation: When the engine is just started, the coolant undergoes minor circulation. At this time, the coolant does not pass through the radiator for heat dissipation, which helps the engine to warm up quickly. 2. Major circulation: After the engine reaches its normal operating temperature, the coolant undergoes major circulation. At this time, the coolant flows through the radiator for heat dissipation, allowing the engine to maintain a reasonable operating temperature range.
I remember when I first started driving a diesel car, I was also constantly worried about the temperature gauge. 90 degrees is completely normal, as the optimal operating temperature for diesel engines is typically between 85 and 95 degrees Celsius. My car consistently shows around 90 degrees, with excellent fuel efficiency and outstanding fuel consumption performance. If the temperature suddenly spikes above 100 degrees, it indicates a problem, such as the cooling fan not starting or a clogged radiator. It's advisable to regularly check the coolant level and flush the radiator with clean water to keep the system clear. During normal driving, avoid prolonged idling or overloading to prevent engine damage from overheating. Make it a habit to check the dashboard every time you start the car; if the green light is on, there's no major issue, so drive with peace of mind and don't overstress.
