I’m practicing for my driving licence and I’m going to driving school, just out of curiosity though I’ve looking on YouTube how to start and run a car and I’ve seen at least 3 different methods, I dunno which one is the correct. Things like the order when you release a pedal or when you need to press the clutch keep switching…
Until the engine warms up, I can’t keep the windscreen from misting up in the winter. Especially if it’s frosted on the outside!
You fix your leaky weatherproofing and put a dehumidifier inside overnight to get rid of the leftover moisture. Afterwards your windows will no longer mist up.
Fix the issue instead of treating the symptoms
Modern car engines would need a very long time to warm up in idle anyways, and modern cars usually have electronic defrosters for the windshield
The outside is the easy part (unless there is thick ice): use the water spray with the wipers. In the winter, the water contains a thawing solvent.
For the inside, what I personally do in the winter: before parking my car in the evening, I open all the windows for a few minutes to let the cold air in (also switch off the heating). Cold air is very dry. So it does not mist up (most times) in the morning.