Engine oil AMSOIL or OEM Audi

AMSOIL BABY, all the way. 10w30 Turbo oil and filter every 12,500 or 6 months whichever comes first. Out performs all other brands!

I've been using Amsoil on my '02 A4 1.8T. Converted it over as soon as I could b/c that little hamster gets hot during the long summers around here. Car doesn't burn a drop of oil, of coure it has only 29k on it.

I'm using Amsoil 15w-40 in both of my Diesels with great results.

Amsoil series 2000 20w50.

I change every 5,000 with Amsoil in my TDI. I like to change oil and keep tabs on everything under the car, so it's worth it to me.