I've put about 200 hours on my neighbor's Maxxum 125. It is a 2013 but has DEF. It doesn't use much. They say 1 gallon def per 25 gallons of diesel but I don't think it is that much. Pulling hard, maybe, but it sure doesn't running 17-1800 rpm on a shredder. Pretty much any brand from 2012 will have it. John Deere started with it in 2016. If you buy a newer diesel pickup, it will have it. It's a fact of life on newer diesel engines. I've had some farmers tell me that their tractors with def run better and use less fuel than the interim models with everything but def.
Thanks Anson.
My Case 95C has a DPF rather than the DEF. When the DPF comes on, it may use a bit more diesel, but it doesn't stay on but for a few minutes about every other day. I believe that tractor is a 2015 model. I bought it brand new in 2015 anyway.
My 45hp Mahindra doesn't have any of that. I believe it's a 2013.
