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G16 fuel consumption
http://auszookers.com/forum/viewtopic.php?f=5&t=26010		 Page 1 of 1
Author:  Che [ Wed Sep 21, 2011 9:28 am ]
Post subject:  G16 fuel consumption
Wondering what figures you guys are/were able to get per 100Ks on reasonably standard Sierra with a g16 and carby.

I'm only two full tanks in on my rebuild, but seems i'm averaging 14L/100K's... I thought I should be doing better than that :oops: I was expecting 10L/100K or near abouts (as per Suzuki quoted specs)... 14L is waay more than expected :( i'm a bit scabby, so this came as a shock.

Given i'm running LPG, but my compression is also a full ratio higher which 'should' make the tank go further, and comparable to petrol mileage. Will it get better as I get a few more miles onto the engine, or is it likely to stick?
Author:  joel [ Wed Sep 21, 2011 9:30 am ]
Post subject:  Re: G16 fuel consumption
lpg usually uses more than petrol, the "savings" come as lpg is cheaper.
some one who knows can shed more light on it.
Author:  Jester [ Wed Sep 21, 2011 9:30 am ]
Post subject:  Re: G16 fuel consumption
im running 30s on 4.6 diffs, and the only time i get down near 10l per 100km is when im on the open road
Author:  atari4x4 [ Wed Sep 21, 2011 9:30 am ]
Post subject:  Re: G16 fuel consumption
dont forget that gas doesn't go as far as petrol, can be a fair bit different in L/100 compared to petrol.
Author:  Che [ Wed Sep 21, 2011 9:50 am ]
Post subject:  Re: G16 fuel consumption
On my 1.3, LPG used only 10% more (or 9 - 11L per 100)... this is closer to 40%... not happy Jan.
Author:  joel [ Wed Sep 21, 2011 9:58 am ]
Post subject:  Re: G16 fuel consumption
ive never been a fan of lpg man,
2 mates of mine had ba falcon utes, one lpg and one dual fuel.
when the dual fuel ran on lpg he was lucky to get 220km to a tank, when on petrol he go around 490km.
his lpg system always got some sort of vapour lock or some such, and would backfire and burry down when you tried to accelerate.
i reckon 14l per 100km is ok for lpg, but im no expert on it. maybe pay a visit to someone who specializes in the area and get some advice on it.
Author:  Ben_Sierra [ Wed Sep 21, 2011 10:12 am ]
Post subject:  Re: G16 fuel consumption
che_guitarra wrote:
On my 1.3, LPG used only 10% more (or 9 - 11L per 100)... this is closer to 40%... not happy Jan.


Is it fully run in yet? Has everything seated properly? Give it some time...
Author:  Che [ Wed Sep 21, 2011 10:39 am ]
Post subject:  Re: G16 fuel consumption
Been on 'straight' LPG for 18 months, it's been a godsend. Every taxi and forklift in Australia runs on it for a reason - being cheap is only part of the reason. Dual fuel is a different story to running straight LPG, you have to settle for an operating compromise between two fuels with different combustion characteristics. You'll never see dual fuel on anything but work utes and vans.


Not sure if it's run in yet, don't really know how to tell either. Done around 800 K's of pretty snappy driving, but power gains seem to have levelled off, no smoke out the back, and no oil consumption. To tell the truth i'm not sold on the LPG break in having read countless negative reports, but it's under warranty and been given the OK by Suzistore, and so far so good.


Hopefully Royce can chime in, he's always on the money :wink: Considering a 9:5.1 - 10:1 compression and an unchanged 1.3 intake, 14L/100K seems a little thirsty.
Author:  Hybrid [ Wed Sep 21, 2011 10:45 am ]
Post subject:  Re: G16 fuel consumption
As a comparo I had a petrol BA for work then a factory lpg BA after that. The petrol ran around 13-14L/100 and the LPG 17L/100. I can't think of the word for it (chemistry was a long time ago) but you could look up the comparable energy in petrol per ml as opposed to lpg per ml. Think it's more than 10% diff.
Author:  royce [ Wed Sep 21, 2011 10:46 am ]
Post subject:  Re: G16 fuel consumption
has somebody that has any idea about gas retuned all your junk to work with the bigger engine?
Author:  stockman [ Wed Sep 21, 2011 10:49 am ]
Post subject:  Re: G16 fuel consumption
My first rx3 was on straight LPG and I got 120k's from the tank :lol:
But back then it was around 30c per litre.
Author:  Drova [ Wed Sep 21, 2011 11:05 am ]
Post subject:  Re: G16 fuel consumption
G16b in mine on petrol. allways uses 8-9L per 100km on
29" MUDs on daily driving
Author:  Che [ Wed Sep 21, 2011 11:16 am ]
Post subject:  Re: G16 fuel consumption
royce wrote:
has somebody that has any idea about gas retuned all your junk to work with the bigger engine?


Yes, on Saturday when I picked up the zook was the first thing I had done.
Author:  atari4x4 [ Wed Sep 21, 2011 11:17 am ]
Post subject:  Re: G16 fuel consumption
i think you're expecting too much to soon.
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