I've used my Navajo for hauling a half ton of tile setting tools and materials, and towing travel trailers for almost 20 years. Aside from a pulsation in the front passenger side brakes that develops like clockwork every 30,000 miles (inevitably requiring machining or replacing the rotors), this has been a fantastic vehicle for me. I change the oil every 3000 miles, and I've done little more than follow the recommended maintenance schedule. I added a quart of Slick 50 Teflon coating 19 years ago at the first oil change(just to see if there was anything behind the hype), and I'm sold. The engine has remained strong and I'm heading for 221,000 miles.