The Duetz motor was supposed to be revolutionary in the combine industry. We see where that went. As farmers we are creatures of habit. We want something that works, is of value and can be repaired quickly. I have heard good things about the Sisu and I can tell you good things about the Duetz powerplants. The Duetz worked however the cost of parts was detrimental too its value and the Duetz motor could rarely be repaired quickly. I don't know much about the Sisu however I would be very skeptical about parts supply and service of an engine that is made overseas. Is a Cummins perfectIJ Certainly not. Is a Deere or CatIJ Hardly. But in the test functionality, value and repairability I'd take a Cat, Cummins or Detroit engine every day. Take road tractors for example. Most are powered by Cat, Cummins or Detroit. They provide value and are extremely easy to get back together in very short order. The best motor in the world isn't worth a darn if it takes two weeks or more to get it back into the field. The 8.3 has been used by Case and now AGCO for over 15 years and its reliability has been tremendous in tractor and combine applications. The M11 has only been in Gleaners for close to 10 years and its performance has been awesome. Furthermore the M11 has spent countless miles in high hp road tractor applications with very good success. In terms of sleeve issues and electrolysis. This problem is caused by poor maintenance in 95% of the cases. most of these failures are because water is never checked or changed. The N14 is known for commonly logging 10,000 hours if the water is monitored annually, the injectors and valve train run every 1000 hours. Bring on the SISU, but give us a choice until the bugs are worked out. I trusted the "knowleageable experts" at AGCO when I bought my Duetz powered R62. I won't make that mistake again.