Engine oil Mobil or RED LINE

They also have a race blend for better protection.

i switched from castrol syntec 5w40 to mobil 1 0w40 when i went turbo and i noticed faster spool up and 9 degrees colder oil temps during hard drivin.....

Mobil 1 0W-40 can be had at your local walmart. It's quite a bit cheaper at walmart than the auto parts store.

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.

With Red Line you really have to look beyond the grade on the bottle. They will always recommend the thinnest kinematic viscosity oil because they have such a high HTHS.

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.

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.

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.