Maritime emission rule change

[Rawze]

Just to let everyone know...

The engines without any egr, and only a SCR filter .....

* They have internal egr to the cylinder, by burning off the oxygen on a pilot injection cycle before the main combustion happens.

* The also will send fuel through the exhaust by opening up injectors during exhaust stroke just like the older "Doser injector" systems, to burn off the soot from the SCR element. Basiaclly, the SCR element itself is catching much of the soot and they burn it off, just like in the system with the DPF.

- These systems come with their own sets of problems .. and I have seen a lot of complaints for them carbon packing piston rings and having excessive blo-by and needing inframed at 450k miles on them, even though the oil tends to stay cleaner.

If someone thinks for one minute that these systems are any better than the system they already have,. they are mistaken.