Originally Posted By: ECS
There is no 5/40 that is approved for this engine (VW 507 compliant). The 507 oils seem to be pretty close to that, though. Note the viscosity numbers.
I know a lot of VW TDI owners and most use either Liqui Moly, Castrol or Mobil oils and not many pay too much attention to the exact VW spec outside warranty, as long as the oil they are using was recommended in the oil finder. Which exact engine do you have??