I have been using it in my cars now for several 30,000 mile oil changes. I change the filter every 5,000. My cars are still running fine with 192,000 on one and 250,000 on the other. One of my other cars had 275,000 and was still running strong until I was "T" boned. In the long run it saves money and it's easy to simply change a filter every 5,000 miles.
