I understand using 1st or 2nd gear for snow but when would you use 4, 5 or 6th gears? If I'm on the highway and shift into "low" will it automatically pick the proper gear for my speed? It doesn't start at 1st gear going 60 MPH does it?
What year car do you have, if 2012 or 2013 if on highway and shift into L the car will shift into 4,5,6 depending on speed. It may be 4th at 55mph so might want to be ready to upshift if your revs start building to fast for traffic