I too is using Helix Ultra 5w40. But on a car which is slightly incompatible.
Perodua Axia. It calls for 0w20 recommended. But I'm not confident with P2's own full synthetic oil. so I decided to go for Helix Ultra.

only penalty is the poorer FC (but doesn't affect engine performance). From 17km/l to 15km/l, sometimes 14km/l.
so for my next oil change I have to go back to a lighter oil,

and give the remaining balance to its bigger, fatter brother. Exora Turbo.

I saw on UBuy that someone is selling parallel import Helix Ultra 0w30. not sure whether it's safe to buy from UBuy.
Yes my current Helix Ultra is also parallel import version but I got it from Giant.

This post has been edited by SleeplessEyes: Aug 2 2019, 06:11 PM