Is your drive hard sufaced or gravel? If hard surfaced I would use some sand for traction till the temp is going to be above 10 degrees F. Salt doesn’t work that well in colder temps.when the temps are going to be a little warmer and you have some sun,hit it with salt again. 160 lbs on 2/10’s of a mile should do it. We put down 400 to 500 LBS. per lane mile on the highway to get it bare. The trick is to get it cleaned up and dry before the next snow, so it doesn’t stick and you can just plow it off.