2006 Volkswagen Golf R32 | Black Magic Pearl | Sunroof | DSG
The oil used meets the required VW spec so that's why I used it. Have used 5W-40 in my other car though.Why 5W-30? The specification for the engine was originally 5W-40, at least it was in my Mk4 and the engines are essentially the same?
As another poster has found as engines get older and you get some wear in the bearings and pump you may have a problem with low hot idle oil pressure with 5W-30.
I know dealers use 5W-30 but that just to keep their life simple as more modern VW's normally use 5W-30 or 0W-30