Hello car: Audi 80 (B3) type 89 with incredible 90 hp and a 1.8 Sport Edtion machine. My little stinky Approves fabulous 18 liters at 100 km at an average speed of 60 km/h. This is clearly too much of the good as much as I love it but … Neee…. Well the question is what are the typical parts that lead to it and how can you test it ?? Biiitttteeee Hellllfffttttt me