Excessive fuel consumption

[trikeboiler]

Hi all bit of advice needed please, I have a 2.5 diesel bongo 2wheel drive, she is only doing at best is 20 mpg, there is no diesel leak that I can see nor can I smell diesel, performance wise she pulls fine, she has done approx 85000 miles, any ideas please, thank you.

[Bob]

What sort of journeys are you doing?

Motorway, 50 mile commute, short hops in hilly country?

Is this a sudden drop from normal?

If so, what have you been getting previously?

[trikeboiler]

Hi a lot of my journey are short one's and it is quite hilly around here, I was getting about 28 mpg. On long trips it appears ok. Cheers

[Bob]

28 mg sounds about right, first thoughts are air and fuel filters, although 20 on short, hilly, runs doesn’t sound too bad.

Others may have some thoughts.