Isuzu Trooper Owners Club UK™

dieseldog69 · Posted: Mon Feb 14, 2011 21:57 Post subject: 3.9 Discovery fuel consumption?

I have not turned my back on the faithful Isuzu but I have bought a Discovery for work purposes, they are going to pay the expenses so its win win for me, but what sort of MPG can I expect from a 3.9Efi?
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Dead on my feet but sitting on my *beep*!!!

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richard wilkinson · Posted: Mon Feb 14, 2011 22:07 Post subject: Re: 3.9 Discovery fuel consumption?

Gribble · Posted: Mon Feb 14, 2011 22:28 Post subject:

You mean GPM shurley Laughing

DYLAN · Posted: Tue Feb 15, 2011 0:19 Post subject: Re: 3.9 Discovery fuel consumption?

I'd guess at 21-22 on a steady run
14-15 town and single figures with a lead foot Wink

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2002 S-TYPE JAGUAR 3.0 SPORT

griffter · Posted: Tue Feb 15, 2011 7:22 Post subject:

a mate years ago used to get the trip meter down to 4 mpg from cold and a heavy foot!

dieseldog69 · Posted: Tue Feb 15, 2011 14:08 Post subject:

well all I can say is that this is not the bad news I was expecting Exclamation

I had a rough figure in the head from running an old classic of around 18, but am hoping that the auto box and cruise control will take care of me on the longish runs, thank god it has an LPG kit fitted and that wont take more than a service to get up and running again, the cost of LPG over here at the mo is 54 euro cents to the litre and thats a rise from the pre winter 42 euro cents per litre so with petrol nearly three times that I WILL be sorting that out!

Thanks guys

might even get a load of the bigger jobs done on the troop now, bushes, ball joints, suspension etc,. etc,.
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Dead on my feet but sitting on my *beep*!!!

Mork_77 · Posted: Tue Feb 15, 2011 14:19 Post subject:

I used to have one and got about 13mpg on LPG

dieseldog69 · Posted: Tue Feb 15, 2011 14:23 Post subject:

13!!!!!!

got better than that in the range but wouldnt say i had neither a lead foot nor a feather light slipper either, but then again with the LPG that much cheaper suppose it wont matter that much, will it??????
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Dead on my feet but sitting on my *beep*!!!

Mork_77 · Posted: Tue Feb 15, 2011 18:36 Post subject:

Well if the LPG is approx half the cost of petrol then its approx the equivalent of doing 26mpg

dieseldog69 · Posted: Tue Feb 15, 2011 19:45 Post subject:

Been on the LRO site and some guys on there are talking up 17/18 mpg on LPG and they speak of 21-23MPG on petrol.

Personally dont think they can be far out for a 3.9 auto?
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Dead on my feet but sitting on my *beep*!!!

DYLAN · Posted: Tue Feb 15, 2011 21:17 Post subject:

You'll have to let us know when you get it, Would be great if you can achieve those figures Wink

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2002 S-TYPE JAGUAR 3.0 SPORT

Philp · Posted: Wed Feb 16, 2011 9:46 Post subject:

Thats a bit *beep* for a 3.9, I get mid/upper 20's on petrol from my 4.3L V6 and about 19/20 on gas, and thats needing a service.
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Phil

96 or is it a 98 Isuzu Bighorn Lotus

Mork_77 · Posted: Wed Feb 16, 2011 10:07 Post subject:

Maybe mine had a fueling problem, it did eventually have to go because of running problems.

richard wilkinson · Posted: Wed Feb 16, 2011 21:49 Post subject: Re: 3.9 Discovery fuel consumption?

dieseldog69 · Posted: Wed Feb 16, 2011 23:20 Post subject:

Love that thought and will do so on every permissable occasion, will let you al now how I gat on with its thirst.
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Dead on my feet but sitting on my *beep*!!!