Full synthetic 5w-40 if you can find it, you could run 5w-30 if not. The 1.8t needs around 4.8 qts I believe, so just buy 5 so you have a little left over. Mobil 1 is my go-to oil.
I've switched to Pennzoil Platinum Pure Plus. It's cheap, it's easy to find, and it's got those nice lubricating additives that our hot-running FA20 motors and Garrett turbos like.
FA20s show regular positive results with Pennzoil Platinum PurePlus.
Mobil 1 0W40 and Castrol Edge 0W40 Euro. Those are the best oils for our cars in US. The price is excellent too. I run them in all my cars and equipment. Never had a failure.
Oil change every 5K M1 0W-40, zero oil consumption.
According to [these measurements](https://540ratblog.wordpress.com/), Mobil 1 advanced full synthetic (basic Mobil 1) has a film strength of 117,799 psi whereas Pennzoil Platinum's fim strength is only 99,949 psi.
So then **Mobil 1 is better**.
Honestly, as long as you're changing your oil regularly and not putting Autozone branded oil in, it doesn't matter that much. I like Mobile 1 for NA cars.
I did an oil change last week at 5800 miles and used Mobil1 0W40 VW spec .
Truth, Its a much debated topic. Local testing has shown M1 0W40 to hold up the best.
I use 502/505 Mobil-1 0W-40 in my 2012 VW 2.0T, and my 2010 Audi 3.0T. I change every 3000 miles.
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