Ok, thanks. Looking at HTHS. Factory fill is
CASTROL EDGE 5W-30 LL - HTHS 3.5
The Mobil 1 receommnded oil for this vehicle, including compatible with DPF is
MOBIL 1 5W-30 ESP - HTHS 3.5
Whilst looking at Mobil 1, this looks quite good, is compatible with DPF and meets VW specs, but seems...