Paul64 Posted February 16, 2009 Share Posted February 16, 2009 Please, can someone settle this argument? How many miles would you expect a 1997 Discovery 3.9 EFI V8 to do to a gallon? It has about 100k on the clock. Thanks in advance Cheers, Paul Quote Link to comment Share on other sites More sharing options...
Dave W Posted February 16, 2009 Share Posted February 16, 2009 Please, can someone settle this argument?How many miles would you expect a 1997 Discovery 3.9 EFI V8 to do to a gallon? It has about 100k on the clock. Thanks in advance Cheers, Paul Around 18MPG on petrol, 16 on LPG assuming you don't spend all your time crawling in traffic or thrash it everywhere. With a bit of enthusiastic driving it'll drop as low as 14MPG on petrol and 12MPG on LPG. That's what mine used to do anyway and that had 145k on the clock when I sold it. Quote Link to comment Share on other sites More sharing options...
cipx2 Posted February 16, 2009 Share Posted February 16, 2009 Here are some more mpg figures for V8s: http://forums.lr4x4.com/index.php?showtopic=29065 http://forums.lr4x4.com/index.php?showtopic=37759 Quote Link to comment Share on other sites More sharing options...
geoffbeaumont Posted February 16, 2009 Share Posted February 16, 2009 With a bit of enthusiastic driving it'll drop as low as 14MPG on petrol and 12MPG on LPG. 12mpg? You aren't trying That's about right though, as far as best case goes. I've squeezed 18mpg out of a 3.9 Range Rover on LPG, but only cruising at 60mph on the motorway the whole way. Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted February 16, 2009 Share Posted February 16, 2009 And if Auto around 3-5mpg less Nige Quote Link to comment Share on other sites More sharing options...
YAS328 Posted February 16, 2009 Share Posted February 16, 2009 1997 3.9 manual here 205 k on clock gets 20-21 on petrol and 17-18 on LPG and towing whilst giving it stick down to about 10. Quote Link to comment Share on other sites More sharing options...
Paul64 Posted February 17, 2009 Author Share Posted February 17, 2009 Thanks guys for all the information. Mentioning no names but knowing the way this guy drives, I would estimate that he will achieve about 10mpg! Cheers, Paul Quote Link to comment Share on other sites More sharing options...
Dave W Posted February 17, 2009 Share Posted February 17, 2009 And if Auto around 3-5mpg less Nige Mine was an auto. The auto version is more efficient than the manual when it's locked up so loses out to the manual around town but gains on the motorway. I once got 22MPG out of my RRC, 3.9 V8 auto because I was following a 200TDi that had seen better days.. that was on real petrol though not this silly unleaded rubbish that knocks a few MPG off. The 200TDi I was following did 18MPG which gives some indication of just how tired it was Quote Link to comment Share on other sites More sharing options...
unclebill1 Posted February 17, 2009 Share Posted February 17, 2009 Around 18MPG on petrol, 16 on LPG assuming you don't spend all your time crawling in traffic or thrash it everywhere. With a bit of enthusiastic driving it'll drop as low as 14MPG on petrol and 12MPG on LPG.That's what mine used to do anyway and that had 145k on the clock when I sold it. I'll go with them figures, 18 month ago took the LPG tanks out for more room, did 5000 miles down through Europe, Morocco and back, that was a slightly pricey holiday, but what the ell. Quote Link to comment Share on other sites More sharing options...
Exmoor Beast Posted February 17, 2009 Share Posted February 17, 2009 We've had several Disco V8s 3.9 manuals 16-20mpg 3.9 Auto LPG never more than 18mpg and was 'kin horrid to drive Interestingly our P38 4.0 did 22mpg quite regularly. That didn't make up for its desire to have its gearbox taken out and put back in regularly though Will Quote Link to comment Share on other sites More sharing options...
bishbosh Posted February 17, 2009 Share Posted February 17, 2009 3.9 - 16 - 18 mpg on road. Off road, single figures, very small single figures!!!! Quote Link to comment Share on other sites More sharing options...
geoffbeaumont Posted February 18, 2009 Share Posted February 18, 2009 Mine was an auto. The auto version is more efficient than the manual when it's locked up so loses out to the manual around town but gains on the motorway. My figures were for an auto too - good cruising economy but horrific around town was my experience too Quote Link to comment Share on other sites More sharing options...
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