lynall said:

Thats very poor then.

Ive had many land rovers and as a rough rule of thumb town work will get you at least 20mpg, rural low 20s and a decent run medium/high 20s to 30mpg and thats from 200tdi up to my current D3, obviously manuals slightly better, the later the car the lower the mpg only by a knatts cock but they are lower.

My daily commute (loads of 30/40/50 limits car only just gets to tenperature as I get to the end ff the journey) is exactly 5 miles dead drive to car park and my D3 trip shows 22/23mpg and that over reads by 10 percent so thats a genuines 20mpg from a 2.7 ton auto thats always got some sort of elcetrical loads going heated screen/seats/air con etc.

I think you need to start from the tank and check everything up to the engine, then check pump timing, is the oil lever rising? any brakes binding? really get anal about the whole car as something is obviously wrong.
Locking cap fitted? tank drain bung leaking or showing signs of being removed? sadly very easy to get to!
Is the trip registering the correct mileage? ie have you changed tyre size?

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Blizzard44 said:

Thanks for the suggestions, will check the tank and brakes asap. The tires are 235 85 r16 cooper discoverer stt mud terrains but I used my sat nav to calculate the distance travelled so I'm sure it's correct.
It sailed through the MOT in november, no mention of anything brake related, can't say I noticed the high fuel usage up until a few weeks ago.

Edit: Will check my pump timing at the weekend. If it was out even slightly would it make that much difference though? I also get no smoke from exhaust if that means anything.

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landowner said:

Might be driving style, high revs burn fuel, harsh acceleration burns fuel, late braking wastes fuel, add all that up

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lynall said:

I reckon you would have to be off roading hard to get the mpg down to 11mpg.

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landowner said:

I've been down to 9mpg but that was pulling the AA van back from Glasgow with the V8

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