2.2 diesel poor economy

JohnFol

Member
:
Mazda 6 3rd Gen 2.2 Diesel sport auto
Morning all, just taken on a 2014 2.2 diesel in an attempt to reduce some running costs from my previous A6. Bit surprised the mpg is no where near the manufacturers guidelines. On previous cars (Mondeo's, A6, Scirocco, golf...) I can fairly easily get and sometimes exceed the quoted figures so it's not a heavy foot.

1st tank returned 33mpg. I put some diesel equivalent to redex in the tank, had a full service this week ( so oil, air and fuel filters) and am now getting closer 36mpg. The quoted combined figure is 58mpg so this is a huge difference making me think there is something else wrong. Car runs well, smooth so I would doubt mis-firing, timing etc but open to ideas.

Any thoughts on the things I can check?
 
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