the one with the green cap.. i switched from the red cap the 50caraudiofrk1006 said:
JETninja said:5-30 or 0-40 Mobil is great. Both are a Class IV stock oil.....Castrol and Valvoline are both Class III I think...quote]
This is very pertinent, the Class III base means that by the accepted meaning of Synthetic the Valvoline isn't really.
I just dumped another gallon of Mobil 1 0w40 in mine. I wonder what the dealer uses.
Go to bobistheoilguy.com and research....TDI owners and the serious oil guys feel its fine for your TDI. (and my 1.8T) With the market they advertise too...no real benefit to applying to that specification...but looking at a breakdown of the oil compared to others it should easily surpass the spec.bartonkj said:Mobil 1 Delvac (5w-40) is now also being sold as Mobil 1 Truck & SUV formula available at Walmart. Mobil 1 Delvac is popular amongst the TDI crowd and it is an excellent oil for gas or diesel engines. Now that it's at Walmart you don't have to go to truckstops to get it. Hell, it's even cheaper in the Truck & SUV packaging than the Delvac was. Now the only problem is my newly acquired 2004.5 Passat TDI PD requires the VW 505.01 oil spec (and while it's not clear if the Mobil 1 Delvac meets that spec or not - it is definitely not rated for that spec) - SO just when I can get the oil I use cheaper - I can't use that oil anymore!!!!