How long should I warm up my car if it hasn't been driven for several days?

[MaverickLee]

Cars that haven't been driven for a long time only need to be warmed up for 30 seconds to 1 minute. Here are the relevant details: 1. The method for warming up a car is as follows: (1) Start the vehicle with the air conditioning turned off. (2) Let the car idle for 1 minute to warm up. (3) Drive slowly after the engine runs smoothly. (4) Once the temperature gauge rises by 1 to 2 bars, you can drive normally and turn on the air conditioning. 2. The reasons for warming up a car are as follows: (1) After prolonged parking, the engine oil flows back into the oil pan. (2) Before the engine reaches its operating temperature, the fuel supply system cannot effectively vaporize gasoline completely due to lower temperatures. (3) When parked, the gear oil flows to the lower part of the transmission, leaving the upper part without lubrication during a cold start.

[DiCorbin]

I've been driving for almost thirty years. Older cars did need longer warm-up times, but with today's technological advancements, it's really unnecessary. If the car hasn't been moved for a few days, it's normal for the RPM to be higher at startup. Just wait 30 seconds to a minute - mainly to let the oil pump from the oil pan to all engine components. Once that time's up, shift into gear and go, but don't stomp on the gas at first. Drive at idle or low speed for three to five minutes until the coolant temperature gauge starts moving, then drive normally. Excessive idling actually harms the engine, increasing carbon buildup and fuel consumption. One winter my neighbor insisted on warming up for ten minutes and ended up with significantly higher fuel consumption. Of course, if it's extremely cold like -20°C, waiting an extra half minute is fine.

[MacGabriela]

I used to run an auto repair shop up north, and warm-up time really depends on temperature. For regular days when the car hasn't been driven for a few days, 20-30 seconds after startup is usually enough for oil circulation. But when it's below -10°C in winter, especially for older cars using conventional oil, I'd recommend waiting about a minute to let the oil thin out. Modern cars with full synthetic oil have much better cold-weather flow characteristics though. The key is not idling excessively - gentle driving after RPM stabilizes is the real solution, as engines warm up faster under load. I remember a customer complaining about cold-start shaking, and diagnostics showed prolonged idling caused carbon buildup clogging the injectors. So proper warm-up actually prevents headaches.

[VanIsabelle]

On weekends, my car often sits idle for five days, and on Monday mornings, I wait about 20 seconds after starting it. With advancements in engine design, cold-start protection has improved significantly—oil can cover critical components within seconds. Once the idle stabilizes, I drive out of the neighborhood at low speed, and the coolant temperature rises within three to four minutes. There’s really no need to warm up the engine for five minutes like the older generation used to—it wastes fuel and pollutes the air. If the battery is in poor condition, it’s even more important to shorten the warm-up time to avoid starting difficulties. In short, a brief lubrication period is sufficient, and driving to warm up the engine is more efficient and doesn’t harm the catalytic converter.

[JonathanFitz]

My friend from Northeast China taught me this: at minus ten degrees Celsius, let the car sit for three days, then wait 45 seconds after starting to allow the cold engine oil to reach the turbo shaft. Above zero degrees, it usually takes about 30 seconds. It's really annoying to see people idling their cars for seven or eight minutes in winter—black water dripping from the exhaust pipe is a sign of incomplete combustion and carbon buildup. The correct approach is to drive at low speed for two kilometers after a short idle period, which both protects the engine and saves fuel. By the way, for cars started via a mobile app, it's even more important to control the idling time. The 10-minute auto-shutoff feature is designed to prevent excessive idling.

[VanFaith]

Hybrid car owner shares experience: After parking for three days, the car starts with motor assistance and doesn't require intentional warm-up. For regular gasoline cars, you can drive after waiting half a minute for oil pressure to stabilize, but gently press the accelerator and keep RPM below 2,000. Once the temperature gauge starts moving, drive normally. Excessive idling may dilute engine oil with gasoline, reducing lubrication. Once forgot to turn off auto start-stop system, didn't need extra warm-up even when restarting at red lights. Modern technology has reduced warm-up needs, and proper operation can also reduce exhaust pollution.