how many miles is a 1.9tdi audi last
0. On my 1.9 TDi sport i reset the trip from a full tank and on average get around 10 miles per ltr (45 mpg) , that's a mix of urban and motorway driving. On the motorway the comp can show 750 miles plus left in the tank, I'm happy with that.Oh and thats with the aircon on.n my 1.9 TDi sport i reset the trip from a full tank and on average get around 10 miles per ltr (45 mpg) , that's a mix of urban and motorway driving. On the motorway the comp can show 750 miles plus left in the tank, I'm happy with that. Oh and thats with the aircon on.