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Matt@obsidian



Member Since: 29 Oct 2011
Location: Greater Manchester
Posts: 70
England 2003 Range Rover Autobiography 4.4 V8 Zambezi Silver
MPG dropped after new fuel filter?

I noticed my v8 petrol was returning quite poor milage a few weeks ago. Couldn't get my head round it. The computer suggest it returns less than 14 mpg on a steady motorway run, where as it would return in the 20's before, yet when I come off the motorway and drive home through the hills (we live quite rural), it would go up to 14 and a bit? Then I realised it has recently had a new fuel filter as my garage thought they spotted a small leak.

I assume the 2 must be related. Has anyone else had similar experiences?

Matt Range Rover 4.4 V8 Autobiography
Mustang Mach 1 (1971 in grabber green)
Honda civic 2.2 diesel
VW crafter with ICE
Post #123530 24th May 2012 9:18pm
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Matt@obsidian



Member Since: 29 Oct 2011
Location: Greater Manchester
Posts: 70
England 2003 Range Rover Autobiography 4.4 V8 Zambezi Silver

Nobody had similar issues? Range Rover 4.4 V8 Autobiography
Mustang Mach 1 (1971 in grabber green)
Honda civic 2.2 diesel
VW crafter with ICE
Post #123754 26th May 2012 2:39pm
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Cam-Tech-Craig



Member Since: 03 Aug 2011
Location: Gloucestershire
Posts: 16284
England 2015 Range Rover SVAutobiography SDV8 Loire Blue

IMHO a new filter can only improve MPG! Strange one...

Craig Rolling Eyes
Post #123766 26th May 2012 5:19pm
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Matt@obsidian



Member Since: 29 Oct 2011
Location: Greater Manchester
Posts: 70
England 2003 Range Rover Autobiography 4.4 V8 Zambezi Silver

That's what o thought! Wondered if there maybe a sensor connected to it or something that could affect the computer Question Range Rover 4.4 V8 Autobiography
Mustang Mach 1 (1971 in grabber green)
Honda civic 2.2 diesel
VW crafter with ICE
Post #123768 26th May 2012 5:26pm
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