Experts Reveal New Rules for Warming Up Cars in Winter: What to Do at -5 °C.

According to inkorr.com: With the arrival of cold weather, drivers are once again faced with the question: Should you warm up the engine and how to do it properly so as not to damage the car? Experts warn that a wrong start at low temperatures can significantly shorten the lifespan of the engine and transmission.

Influence of Low Temperatures on Oil and Engine

When the outside temperature drops to around +5 degrees, the technical properties of the oil deteriorate. It becomes thicker, spreads more slowly in the system, and does not reach all parts of the engine. Some components are only lubricated during spraying, which does not happen until warming occurs. The automatic transmission is also at risk, as the thick oil increases the load on the friction discs and hydraulic block.

Hazards of Long Warm-Ups

Experts point out that warming up for too long while idling can be harmful. The cold engine, running without load, actively collects deposits on spark plugs, valves, and catalysts. Additionally, emissions become significantly more toxic.

Recommendations from Experts

Experts recommend following a simple procedure:

• Short warming in place at temperatures around +5 degrees – 1-2 minutes;
• At negative temperatures – up to 5 minutes.

This time is enough for the oil to start circulating and the main components to receive initial lubrication.

The further warming should occur while driving – this is more effective and safer for all systems of the car. Typically, the engine and transmission reach operating temperature after:

• 10-20 minutes of driving,
• or 5-10 kilometers of distance.

Additional Winter Tips

In winter, it is important to avoid sharp starts and stops, as the braking system also needs time to warm up.

• You should not increase the RPM in neutral, as this can contribute to the wear of the cylinder-piston group.
• Before driving, it’s useful to remove snow and ice from the radiator and air intake openings – this increases the efficiency of heat exchange.
• Diesel car owners should keep an eye on the condition of the glow plugs and the quality of the winter fuel.
• For those with a remote start function, excessive warming should be avoided, as it increases costs and negatively affects the catalyst.

Correctly warming up a car in winter is very important for the lifespan of the engine and transmission. Remember to warm up briefly before driving, and then continue warming while driving to avoid problems on cold days.

If drivers know these simple rules, they can not only keep their cars in good condition but also ensure a safe ride in winter conditions. However, it is also important not to forget about regular maintenance of the car so that the given advice has a maximum effect.