During winter, washing a car with hot water is not advised. This guidance comes from Rossiyskaya Gazeta, which cites Alexey Ruzanov, the technical director of Fit Service, a global network of car service centers.
Experts recommend washing a vehicle when outdoor temperatures are not more than 15 degrees below zero. Extremely hot water can harm the vehicle’s finish and glass, so using warm water is preferable. The washing area should be kept warm as well. It is best to avoid cold car washes and night-time self-service bays. After a frost, letting the car rest in a warm space for 5–10 minutes helps prevent sudden thermal stress that could affect the paintwork, according to Ruzanov.
The auto expert also advises applying silicone to rubber seals, hinges, and locks after washing. Most importantly, dry and blow-dry the car before moving it out of the bay, since freezing water can damage or stress various components and systems.
One quick way to check if the vehicle is dry is to inspect the door edge for drips. If water remains, wipe it down again to avoid ice formation on seals.
There have been times when it’s recommended to wash a car at least once a week in winter to mitigate the corrosive effects of de-icing agents. Washing during severely frosty periods should be balanced with the risk of water freezing on the body and its parts.
Changing weather patterns, including thaws, do not require extra steps from car owners because most modern vehicles already handle moisture quite well.
Why do new batteries sometimes fail sooner than expected? That question often arises in winter, as cold temperatures can stress electrical systems and reduce battery performance. Routine care and timely testing help keep batteries reliable through the season.