Quote, originally posted by bcze1 » All the German manufacturers have their own specs. US & Japanese generally use API spec unless its high performance car, like Corvette ZR-1 or Nissan GT-R.
And yes, all they have to do is ask for your maintenance records if for some reason they're in question. No need to test a thing. If you can't prove you poured in an approved oil at the recommended intervals (or shorter) things could get ugly. However, it should be noted that the odds of a failure happening that makes a dealer or VW look into your maintenance records is pretty small. But it does exist.
I figured not much chance of anything bad happening and the only reason why I asked is because of my run-in with Chrysler. However, I actually lifted the vehicle and I could see how that would cause some issues. Redline is better than most oils so I wouldn't expect many problems.