Can You Drive When the Engine Temperature Hasn't Risen?

[KayleeDella]

You should not drive when the engine temperature hasn't risen. Here are the details: 1. After a car has been parked for a long time, the engine oil inside has mostly flowed back to the oil pan, and the oil film on the friction surfaces of the engine is largely destroyed. At the moment of startup, friction causes relative motion, but the oil pump hasn't yet delivered oil to the friction surfaces in time. This results in dry friction on the friction surfaces, meaning the engine experiences the most wear during the cold start phase. 2. Because low engine temperature increases engine wear, there should be a warm-up process after a cold start. After starting the vehicle, let the engine idle at a high speed automatically. Wait until the idle speed drops to the normal value (around 800 rpm) before driving. Before the engine temperature reaches the normal value, avoid exceeding 2500 rpm, keep the engine load under 30%, and refrain from aggressive driving such as rapid acceleration or hard braking. 3. Only after the engine temperature reaches the normal range (80°C--90°C) should you drive normally.