What kind of problems has anyone heard about? At our barn we have 1 and 1 on the way. The one we have now has @ 2500 miles on it and it has been regenerated 3 times already. Supposedly because they use it in the city and the exhaust gets plugged up from stop and go so much and shutting off the engine so much. I feel they would of been better off re manufacturing the old equipment like they do the trailers instead of buying a headache and problems. Nothing new from management.