Hi. I've had a 2018 Volt for a month, and I live in the lake effect snow belt of the UP, so we've had 70+ inches of snow since I got the car. With snow tires, the car has been fine in the snow, but we have some very steep streets in town (an old mining town). What's the best bet for getting up a steep hill in snow? So far, I've been avoiding the steepest hills, and going up the other hills by leaving the Volt in drive, rather than putting it in low or turning off traction control--but some people suggest L might be more effective. Any consensus here? Thanks.