As I understand it, the "new" type injectors can be used, and would negate the use of the DPF and perhaps even SCR (aka DEF).
That would certainly be a BIG plus for us techs, and for those of us who own DEF/DPF tractors, trucks, mowers, etc. Those systems are BY FAR the most problematic parts of any of these newer tractors/trucks/etc.
But it depends....on how well or even IF a computer is able to control the new injection properly and still be able to maintain tier 4 emissions standards for the horsepower. ......And soon Tier 5
The whole ordeal has gotten a lot of folks pretty mad at the EPA, which is the root of the issue (at least here in the states). Personally, if you ask me, it's time to consider a gas burning engine in a few tractors that are under, say, 50hp. They're simpler and can absolutely make the same power & torque. Kubota, for instance, already has a gas burner version of one of their approximately 30hp diesels, that makes roughly the same horsepower and MORE torque, at the same RPM and not a lot more fuel consumption. Could you imagine how much less that could cost if it were as popular as, say the L2501? The motor's already produced for other applications. For a lot of our customers who don't need anything larger than 40hp, this would be ideal for them. Only issue, it would need to be EFI which is still simpler and less expensive than common rail diesel of the same horsepower (above 25hp). I personally believe that time has come to try to market one gas tractor and see how it goes. It might be a hit or might be a flop but I honestly think based on the popularity (and reason for it's popularity) of the L2501 that it would be a hit--at least in this area.