Engine oil Castrol or AMSOIL

I used Castrol edge cos that's what my audi used from the factory.

For my 1.6 diesel I use Castrol Magnatec 0W30 Stop-Start C2 which was recommended to me by cox motor parts (great store for Honda parts)

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.

As an avid amsoil user I am bought into the brand. Every product I have has made my equipment run better. I run a small farm and have amsoil in every fluid in all of my vehicles. If you are in the preferred deal it really isn't that much more expensive than regular oil.

My L5P doesn't tick with amsoil. My 5.3 you can't hear the lifters with amsoil. I have a 5.3 that has 300k on it and never had a motor problem with it and it has been pure amsoil since 35k miles.

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

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 did have a 1982 diesel Jetta go 435,000 miles on oem int. shaft bearings. I had access to a lot of free Amsoil back then....so, that may have helped. However, I think it over-lubed the cylinder walls though. Rings weren't exactly what you would call 'tight.'

Stay away from the stuff that the dealer puts in, the Euro Car formula(5w-30 i believe) that Castrol makes is a Blend, meaning not fully synthetic and it shears and burns really quick.