I got 45 put of the previous Outlander with the 2.2 chain cam Mitsubishi diesel engine. You could try better diesel. The engine will have been calibrated and optimised for the very best diesel in order to stand the bast chance in the ECDC tests. If you run it on inferior fuel you will get inferior performance, fuel economy and emissions. But you're highly unlikely to ever achieve the lab test figures. The Real mpg average is 39.7mpg (www.honestjohn.co.uk/realmpg/mitsubishi/outlander-...2)