Engine oil Castrol or IDEMITSU

It doesn't really matter as long as you get one that meets the specifications for your car which should be VW502 in your case. Mobil 1 0w40 and Castrol 5w40 both support that and are widely available for a reasonable price.

I’ve been using Castrol’s 5w-30 with the RN0720 spec (for DPF filtered diesels like yours and mine), it’s the best oil for thins engine. 100.000km doing oil changes every 10k and it’s as good as new, very good fuel economy and no leaks

i am of the mindset of using oil from the region. my GTI is a german car and gets liquimoly, a german oil. my toyota/subaru is Japanese, Idemitsu is a japanese oil (and the oem supplier for Subaru). i have 5w30 in it now.

Walmart sells the Castrol full synthetic eurocar recommended by Audi.

Just to let everyone know, VW/Audi recently dumped Castrol and they now roll with Mobil 1.

I run Castrol Edge in mine, the spec exceeds API SN PLUS/SP and ILSAC GF-6, coupled with a genuine hyundai filter

I use Castrol as it’s the OEM product and is cheap if you buy direct from Ford.

My more modern VW runs Castrol EDGE OE 5W-40 full synthetic. That's what my VW dealer in Utah fills cars with.

Smedia had a video about this and he had more wear with less miles using Motul over Castrol in a Blackstone report. So for me just the convenience and price of Castrol edge I'd pick it over Motul. Knowing it had less wear wear was the nail in the coffin of buying overpriced and often several year old Motul.

I will never use castrol again, stupid dark bottle is annoying and makes it hard to tell how much is left