There are at least two coolant problems here. The well known problem is for the coolant to not freeze and not to overheat. The lesser known problem is for the coolant not to act like an abrasive in a diesel.
Diesels vibrate in ways that gas engines do not and some coolants can wear pin holes in the cylinder walls.
Supplemental coolant additive can be added to the green antifreeze to fight cavitation or you can buy coolant that already has the additive in it.
The additives wear out over time and use. So even though you may have anti-freeze protection left, the antiwear additives may be shot. The only way to tell is to test for freeze protection and to test for the level of additive left.
What the post about Honda antifreeze really brings out is that different metals and seals used in the various engine parts may require a different type of antifreeze for your particular machine.
Not knowing what is in your machine or what is supposed to be in your machine, you need to check your owner's manual for the specific type of antifreeze needed.
The fleetguard diesel antifreeze I use is low silicate, has coolant additive and is blue.