I tow a 2000 Nissan 4 X 4 auto XTerra. When I bought it the dealer said I couldn't tow it. The service manager said it could be. I Have towed it for 45,000 miles and no problems, no xtra wear & tear. I have had the front bearings checked every 5,000 miles, also the front Pumkin, steering etc. I have the auto tranny serviced every 12,000 miles. Not a sign of unusual wear. The vehicle now has 75,000 miles on the odometer, in addition to the 45,000 that it has been towed and are not on the odometer. I rotate the tires ever 2,000 miles that it is towed. All is good. Another Nissan service manager told me ö f course it can be towed 4 down with auto and 4 X 4, Nissan just doesn't want to deal with the warranty issues if they arise".