I thinks it's good stuff. Delo uses Isosyn technology, which I think means heavily Hydrocracked, sort of a Group II+ base. A mate uses it in has 4-stroke dirt bike with a shared sump, which is hard on oil. It holds together well for him, better than some more expensive synthetics he has tried.
We also call it Caltex, but I believe it's called Chevron in North America.
I use the mono grade delo 400 sae 30/40 works well and everything is nice and quiet it is rated CF/SL. I'm sure it is available in africa or down under.