What is the correct way to warm up a car in winter?

[DiAlan]

The correct method for warming up a car in winter is divided into the following two scenarios: 1. For manual transmission models: It is recommended to engage first gear without pressing the accelerator, relying on the engine's low RPM to drive slowly for 35 minutes. You can slightly press the accelerator, and once the needle on the coolant temperature gauge moves slightly upward, shift to second gear (maintaining a speed of 2030 km/h) and continue driving slowly. When the coolant temperature gauge needle rises to nearly 60°C (above one-third of the gauge), you can gradually accelerate and shift up in order. 2. For automatic transmission models: Maintain below 2000 RPM in D gear and drive for 3~5 minutes. Generally, an automatic transmission car in good condition will move forward slowly even without pressing the accelerator, as the idle RPM is sufficient. In this state, the automatic transmission will not upshift, allowing the transmission fluid to circulate fully and the fluid viscosity to gradually return to normal. Similarly, when the coolant temperature gauge needle rises to nearly 60°C (above one-third of the gauge), normal acceleration can be applied.

[AddysonFitz]

In winter, when warming up my car before driving, I usually adopt a simple yet effective method: first, I start the engine and let it idle in place for about half a minute to allow the oil to fully lubricate the internal engine components. Then, I drive at a low speed for three to five minutes, letting the temperature gradually rise to operating levels instead of accelerating abruptly. I do this because cold temperatures cause parts to contract, and if I were to press the accelerator hard right away, it could easily lead to wear or even engine seizure. Additionally, don’t forget to warm up the car’s air conditioning system—when cold air blows from the vents, I always wait until the coolant temperature reaches halfway before switching to warm air to avoid excessive power consumption. Here’s a small tip: check the tire pressure and windshield washer fluid to ensure driving safety. Batteries also weaken in cold weather, so I usually pay attention to maintaining a moderate garage temperature to extend battery life.

[OKinsley]

As someone who loves delving into cars, I pay special attention to details during winter warm-up. After starting the engine, I don't rush to drive off—instead, I let it idle for 30-45 seconds to allow the oil to distribute evenly in the cylinder block. Once the temperature gauge starts rising, I gradually accelerate to around 2000 RPM and drive for a few minutes. Engine oil thickens like frozen grease in cold temperatures, and forcing high revs can damage pistons and bearings—a common issue on frigid nights. I also preheat the AC: after setting the target temperature, I wait for the engine to warm up before turning on the heater, which efficiently defrosts the windshield. Don't forget the belts and battery under the hood—I regularly check the antifreeze concentration to prevent pipe freezing. Overall, warming up isn't wasted time but a form of maintenance, ensuring the car runs longer and more reliably on icy roads.

[DelTyler]

People used to say cars needed long warm-ups in winter, but modern vehicles are different—I just idle for half a minute after starting, then drive slowly to let the engine warm up gradually. Once the temperature gauge rises, I can drive normally, avoiding fuel waste from prolonged idling. Since engines struggle to start in cold weather, I change to antifreeze oil in advance and check the battery.