In my 2012 Touareg TDI with dieselgate fix.

No, just the standard 26 or so gallon tank. The miles were 60% at steady 60 MPH and 40% @ 65 MPH.Are you being pulled by a Prius? That is excellent mileage! Do you have dual tanks?
I only get 650km on a 80L tank, 3.6 Petrol
Actually, I must have had a westerly tailwind on the way from Ft. Pierce, FL to Lake Placid, FL. On the way back the next day, I must have had an easterly headwind because my total range dropped to 870 miles. Still not too shabby average though!Impressive.
In my 2012 Touareg TDI with dieselgate fix.![]()