Best Engine oil for Volkswagen Tiguan

USA Edge 5w-30 worked great in my Tig. I had a Caterpillar UOA done.

I just did the 4th oil change (first non-dealer change) on our 40k mile Tiguan TSI and used Rotella T6. I use it in my stage 2 WRX and think it's fantastic, so why not in the TSI. Great oil overall.

Doing awesome in single digit F weather.

I put Edge 5w-30 in my 2.0 TSI a few days ago. Drained fresh dealer Syntec 5w-40 to do so. 5w-40 is very thick in cold, which is bad for turbo apps. This is the reason for the evolution of 0w-30 and 0w-40 oils, however 5w-30 synth is thinner than all in the cold, near zero F, about 1/2 as thick as 5w-40. Edge is likely the same formula as the VW spec SLX Pro OE anyway. All the new VW 504 oils ARE 5w-30s, ftr. A consensus is forming around Edge being the best of the thin 30 weight synthetics. It worked great in my friend's 1.8t, at a decent interval. 5w-30 synth is a great choice for winter, and seems fine in hot weather too. Thinner oils simply protect better now because of their improved additives. my engine is running great now