In our climate, insulating the engine compartment is completely normal. In severe frost, it is important that the muffled engine cools down longer and that the heat does not blow out onto the track. But here you need to think about safety.
Placing cardboard or other flammable material in the engine compartment can cause a fire, as some cars have a hot exhaust manifold near the radiator. And that doesn’t always happen quickly.
There are also other smaller problems. For example, if it gets warmer and the incoming airflow is blocked, the cooling fan will turn on much more often, decreasing the resource. It can also cause the engine to overheat.
Well, if it is cold in the cabin of your car, first check the thermostat (it is his fault that the engine may have overheated), and only then resort to cardboard boxes.
- “Drive” can be read in Viber.