Maybe a dozen 20 mile trips to work and back each year here in the land of lake effect snow. But I use it every time it is slick at all (even if I just expect it) to get across the street and turn left out of our development. Then I turn it off. They come fast and heavy from both directions. Not a time to spin tires. I have zero use for auto 4WD. Why would I want to run around with my front axle locked in when it isn't necessary. Nursing my used front differential I put in last Spring a bit. Works fine and is quieter and doesn't seem to leak, but not completely quiet.