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Grayson Welly



Member Since: 05 Sep 2021
Location: SW20
Posts: 95
United Kingdom 
Increase fuel consumption AJV8 (petrol)

My car used to deliver about 400 miles to a tank for a mixture of urban and extra urban usage. A faulty thermostat seemed to be affecting it and was replaced... however, it now continues to deliver about 300 miles to a tank or about 18 mpg as opposed to 24 mpg.

I did previously have running issues which were resolved with a clean of the MAF, however, the car does run a little rough on idle (occasionally) and I'm wondering whether the MAF might be underlying this increased consumption. I have run a check on icarsoft and nothing obvious pops up. Any thoughts? --------
2006 Buckingham Blue/Parchment White AJV8 Vogue
Post #663366 3rd May 2023 1:50pm
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Highroller



Member Since: 18 Jul 2016
Location: Hampshire
Posts: 565
United Kingdom 2005 Range Rover Vogue SE 4.4 V8 Java Black

That's Not bad, I'm currently only getting about 11 mpg Shocked
Post #663368 3rd May 2023 2:22pm
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Grayson Welly



Member Since: 05 Sep 2021
Location: SW20
Posts: 95
United Kingdom 

Oi! Go and start your own thread then! Laughing --------
2006 Buckingham Blue/Parchment White AJV8 Vogue
Post #663370 3rd May 2023 3:15pm
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muddycharles



Member Since: 05 May 2011
Location: Miami, FL
Posts: 89
United States 2008 Range Rover HSE 4.4 V8 Bonatti Grey
I had something similar

I cleaned the MAf - still not great, changed MAF and reset the adaptations. (check external temperature sensor too) 2008 HSE B. Grey
Overfinched
NavTV retrofit
Post #663371 3rd May 2023 3:22pm
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batfink



Member Since: 20 Jun 2011
Location: Milton Keynes
Posts: 183
2004 Range Rover Vogue 4.4 V8 Adriatic Blue

My MPG dropped on my 4.4 M62 with no errors, but got better again after I serviced it and changed the fuel filter.

I'd also check for any sticking brakes, feel the hub caps after a bit of a drive to see if one of them is warmer than the others.
Post #663402 4th May 2023 7:22am
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