One distributer says they just use NAPA. Didn't say which NAPA.
Torreson says they use Dexcool. I have heard lots of bad stuff about Dexcool.
The manual (which looks like it was printed in the 80s) says Zerex or Prestone. Not which type though.
Zerex Original or G-05?
I know one cannot tell what is in the stuff just by color anymore. And that it is sort of rocket science.
I know if the wrong coolant is used one might never know because it takes a long time to ruin the engine and one would easily have other problems to blame at 3000 hrs when it could have easily lasted to 8000.
Is there anybody that knows for sure? Is the engine mostly aluminum?
Supposedly it is built from a Mitsubishi L3E - whatever that is.
Zerex (Valvoline) has a neat video that does not answer my question.
The chart from thier website that mentions large diesels is now a "404 not found" so I can't link it. It, however, did not say anything about small diesels.
A filled out "contact us" form last week has brought no answer thus far.