As much as the equipment cost, and to replace it with emission tier 4 tractors, I wash, wax and maintain as well as I can. I look at a lot of my neighbors equipment and I see very little maintenance. Mine stays in a shed when not in use and maintain better than the book requirements. My oldest tractors still have their original paint on the hood. I hope mine last as I am not looking forward to purchasing one that doesn't blow black smoke.