I live in central Canada, and temperatures reach as low as -30C. Just this week, it’ll be -20C overnight and I always park my car outside. From what people have told me I should idle for 10 minutes when it’s extremely cold, and then drive off. What should I really be doing?
Central US chiming in… Only used block heaters when it got to -20 or lower, or I just wanted a warmer car to start with… I lived on a hill with no trees so windchill factor was high. Now that I have a garage, I dont do anything special.