Hi,
Sorry, I'm incapable to tell its performance from virgin oil blotter spot which is form of qualitative test .

However this Long Life oil has super duper specifications and OEM approvals  in VW 50400 50700  MB 229.52 ACEA C3 etc , if genuine .

The approvals carry with it OEM approved oil change interval up to 30,000 km in respective OEM applications .

https://www.bobistheoilguy.com/forums/ubbth...-507-oil#UNREAD

Hi mate,

There is absence of darkened centre zone (typically of about 8-9 mm diameter) and darkened perimeter ring surrounding it , which is good news in itself .

The diffusion zone is very lightly gray indicating very low levels of combustion contaminants/dirt within the used oil .

It also indicates high capacity in detergency/dispersancy properties .

However, the translucent outermost zone indicates there is sign of duel dilution which requires monitoring in this 1020 km used oil .

Anyway this Helix Ultra 5W40 has very high specs in MB 229.5 VW 50200 50500 A3B4 and it has plenty of life to go on in your Vios , IMHO .

I think you meant  to say 1 K here ?

Thank you for providing details like car model and oil model which makes cross-checking with Post # 1 easier .

SHU 5W40 4L pack Long Life with GTL base oils for RM 89.90 is really no brainer for 'all' Asian and NA (North American) engines .

It is also a no brainer for most or all current Euro engines that comes without Diesel Particulate Filter DPF , price wise and quality wise !