Vehicle & Technical > Range Rover

MPG on LPG

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Yoshi:
I know how hilly brighton is, i was bought up in Hurstpierpoint and actually worked in the preston park tavern ;)

Going along the dyke is fun in a landy!

Range Rover Blues:
If it makes you feel any better my LSE can do as little as 9 MPG and on a good day I've had 10.8 MPG recently, no airconn, no big right foot.

Yoshi:
Well did the soapy test today and even though could still smell it it was coming from the exhaust and not from the tank :-s

vxuk:
hi all, I have a P38 on LPG injection and from petrol i get 16.2 (or so the cars ECU says) and worked out that from gas i get about 12. I fitted the kit my self and it took me about a month to do, in that time the battery was disconnected so it lost all the fuel maps and needed to re-learn. when it first started back up i got 25mpg from it. about 2 days later it went to 16  :cry: i thought that the 25 was just a pipe dream but found out that my air flow meter is up the pan so have got a new one coming. It's been remapped and has a stage 3 block in it. so its all very possible to see 25 on petrol so should be getting about 21ish on LPG. In regards to low MPG i was getting about 16mpg before the ECU faulted and then found out that the gas pressure was far to high and now have it at about 1.10 bar (started at about 1.7bar) was just a matter of undoing the vacum pipe abit. I'm soon to fit a ring LPG system on my friends 3.9 RR so not sure what to expect from it.

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