I came across this Castrol CK-4 10w30 HDEO that seems to be in the new Castrol jug colours. Have a look at the suggested oil change interval. Yes, it’s for commercial highway diesels, but just the same......
I had looked at it a couple years back but Cambodian Tire prices on it were atrocious and it appeared that it offered no benefit to the PetroCan offerings that were half the price.