New to the site which I have admittedly lurked for a while. Figured it was time to sign up. I do have a question, too. I was just informed to NOT use off road diesel in my MX4800 due to DPF issues. I have just under 900 hours on the machine, it is used almost daily (work and on our farm). I have just dropped it off at a local shop for fluids, filters and just to have someone other than myself give it a once over. They are the ones that have mentioned the off road issue. Is there any merit behind what they are telling me? Thank you!