Canadian military genset color

Anybody have a idea what color the Canadians painted their Cat gensets? I have a D311 unit that is tagged RCAF and appears to be a dark green (maybe like a olive drab) under a recent coat of light grey. I don't see yellow paint all the way to metal. This genset is also way heavy to the normal Cat
D311 stated weight of 3500#. It's closer to 5100#😮and a bit longer at 9'. It also has a casting/pulley mounted on the pony head that allows one to pull start the pony in real close quarters. Very strange.

I'll have to paint again and it would be nice to paint the original color.

Thanks,
Tom