Just bought a New John Deere D140. I would like to know alternative maintenance, like lubricants, filters, and products that you think are as good, or better, than the John Deere products. I'm always looking for things to make what I have last longer and work better. One might wonder why someone my age is concerned how long they last, but if I can't wear them out, my Children, and Grandchildren can later. I haven't had time to use the search function much, but I intend to .