Engine oil Mobil or LIQUI MOLY

technically you can use Mobil 1 Euro Formula 0w40 in the GTI and the Phaeton because it has the VW502.00 certification.

I was able to document that the oil was VW 502 certified Mobil 1 0W-40.

I do my changes @10k with UOA. 2nd change was with 4 laps on the Nurburgring and about 1500 miles @125 MPH. At 10k The report came back that everything was fine and the oil still had life in it. With my K04 it came back fine also. I drive the piss out of my car.

Related test in European car, changed all fluids and spark plugs saw gain in HP.

Yeap, running it in my 2.0 8v rright now. Will switch to M1 10w-30 or 10w-40 this summer, back to T6 in winter. Got 206K miles on the car.

When I first purchased my 08 WE, I used M1 0w-40. I found I was using about 1/2 quart per 5000 miles. LM cut that down to about 1/4 quart per 5000 miles.

I use Liqui Moly/Lubro Moly Oil (German synthetic stuff), can be found in Napa Autoparts, ECS or Amazon for a very reasonable price. I use it in my Audi and have had no issues whatsoever.

Just stick with Mobil 1 0w-40. It's VW-approved and covers just about all operating conditions. There's a reason it's factory-fill on Porsches and Mercedes AMG vehicles

My last Oil change was using 5w-30 conventional oil. Which is much different than the 5w-20 Syn that VW uses.

When I dumped my dealer Syntec 5w-40 for M1 0w-30 in Dec, it was night-and-day. Way lighter and better.