Hello All
I've sold my jeep - 2006 WH 3.0 V6 with Murchison suspension upgrade - as I went to the Kimberley last year and required a vehicle with much more room so I now have a military series 79 cruiser with a service body on the rear tray. It reminds me so much of my 1979 Cherokee Chief as I drive it.
The reason I am commenting in your discussion is to say that 11 - 12 litres per 100 klm is what my jeep generally returned as fuel consumption. I noticed it increase 1 litre per 100 klm when I fitted BFG all terrains - as the rolling diameter was a little bigger and tred more surface resistance. i also found that the speedo is about 2 - 3 % high when compared to gps devices in my WH vehicle. So I suppose this means the speedo is measuring slightly more kilometres that what is actually being travelled? -- that would mean slightly less fuel used per 100 klm?
Oh the other reason for me entering this discussion is to mention my experience with a retune of the ECU - done to the landcruiser as standard, it is gutless on hills with a caravan behind it - when compared to White Cloud. That is that the fuel consumption increased - more power more fuel - I think its that simple.
So dont be too disappointed if your fuel consumption doesnt improve if you commit to the GDE upgrade - just enjoy the power.
I Am still a jeeper at heart - till the day I die
Happy Trails