How Long Should You Warm Up the Car Before Turning on the AC in Summer?

[VanAdalynn]

You can turn on the AC after warming up the car for 30 seconds in summer. Here are the relevant details: 1. Principle of warming up: The engine piston is splash-lubricated, meaning even at low idle speed, the piston has already been lubricated multiple times within a minute. Moreover, the engine operates at high temperatures, and the entire engine casing heats up quickly in a short time. Prolonged idling wastes fuel. 2. Warm-up duration: If the time is too short, the coolant temperature in the radiator won't reach the optimal operating range (85-90°C), preventing the engine from performing at its full potential. Therefore, the standard practice is to start driving within 30 seconds after a cold start, initially at a moderate speed, avoiding sudden acceleration. Once the car is moving, the coolant temperature rises faster. The warm-up is complete when the coolant temperature indicator light turns off.