[citizen]

Thanks but I’d prefer to have real-world users comment on their sub-freezing experiences.

[delchiante]

10% loss.
In a vehicle that has a mileage rate based on battery power seems like a bad deal for cold weather climates

You can take longer trips when the weather improves :)

Take shorter trips till weather cooperates
Or buy a winter rat that may have battery issues but you can go get one at Auto Zone..