I warm mine up for 20 minutes every morning in the winter. I’ve always live in northern New Hampshire and 20-30 below is common in January. Always have done this, mostly for personal comfort. I’ve been running a tundra for 8 years and wife a rav 4 for about as long. Nothing bad has happened, nor did it on all of my previous vehicles. I’ve never had a garage to store them in. I see this conversation all the time and still do it.
I warm mine up for 20 minutes every morning in the winter. I’ve always live in northern New Hampshire and 20-30 below is common in January. Always have done this, mostly for personal comfort. I’ve been running a tundra for 8 years and wife a rav 4 for about as long. Nothing bad has happened, nor did it on all of my previous vehicles. I’ve never had a garage to store them in. I see this conversation all the time and still do it.