Terios Auto MPG


I have a Terios auto on an R plate can anyone tell me what MPG I should be getting. I find it very thirsty and get typically 24 mpg max. I admit I do have an heavy right foot.I have fitted a Pipercross air filter and that did improve things a bit . I use the Terios for work with a full boot [tools etc I am an Electrician]on normal roads and motorways but it is quite hilly here in Yorkshire.Apart from MPG I love it. Any response welcomed.

Please see this thread

'12' Plate Mazda MX-5 2.0 litre NC 3.5 Venture Roadster 160BHP
'15' Plate SEAT LEON 184 FR TDI. 240BHP/500nm Torque.
Past: '53' Plate Yellow YRV Turbo Approx. 150BHP