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PostPosted: Sun Dec 04, 2011 1:28 am 
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Astra G mrk4 factory fit lpg 100 miles for £10.50 @76.9p per liter of lpg


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PostPosted: Sat Dec 10, 2011 10:49 am 
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Joined: Fri Jun 29, 2007 2:28 pm
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Location: Northants.
Everybody seems to get more lpg mpg than me. We get 20mpg average 2.4 outlander and 26mpg average from the 1600 zafira. Mixed driving in both cases.
How are these jags and beemers getting the 30 mpg on petrol I keep reading about on here? Could hardly get that when the zafira was petrol only, perhaps if it had a ally body :wink: .
To make me feel even worse most of the factory fit zafira and vectras on ebay get 35 mpg average!!!! That's what the ads say so it must be true.


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PostPosted: Sat Dec 10, 2011 11:37 am 
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My 1.8 freelander tends to average between 28-32 mpg on gas but it dosn't get much better on petrol.
And I drive like a granny :oops:


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PostPosted: Mon Dec 12, 2011 6:37 pm 
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Hi Jagman,
Are you sure about this 16-17p/mile? Because that is 37-38 mpg, which is unbelievable good from a XJ6.
Check your fuel consumption regularly there are huge differences between fuel pump pressures that gives you headache or heart attack.
After the first fill up I calculated 42 mpg the second was 24 ... maybe after 10 you can have clearer view.
If the price on LPG is not 40% less, you need to tweak the gas map.
I've got 32 instead of 35 mpg on my Zafira, but only if I drive carefully.
However since gas is cheap I have heavier foot, that's why I have around 28-30 usually ( as well as a new MAF sensor :) ).
So don't worry it will be around 40% cheaper on long run.

jagman wrote:
just got my jag xj6.

quite disappointed in consumtion!
working out just fuel cost per mile...

LPG = 15p/mile
Petrol = 16-17p/mile

Hardly worth the difference! I pay 74p for lpg, and 130p for unleaded.


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PostPosted: Fri Dec 16, 2011 9:19 am 
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billynoband wrote:
Everybody seems to get more lpg mpg than me. We get 20mpg average 2.4 outlander and 26mpg average from the 1600 zafira. Mixed driving in both cases.
How are these jags and beemers getting the 30 mpg on petrol I keep reading about on here? Could hardly get that when the zafira was petrol only, perhaps if it had a ally body :wink: .
To make me feel even worse most of the factory fit zafira and vectras on ebay get 35 mpg average!!!! That's what the ads say so it must be true.

the 1.6 zafira engine needs to be worked hard to move the car
I have a 2.0 turbo petrol one
and I get better MPG then my friends 1.6 zafira as I dont have to drive it hard to get it moving it that makes sence


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PostPosted: Fri Dec 16, 2011 9:22 am 
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I am getting around 22Mpg on my Zafira around town on its LPG system
I get 25mpg on petrol
I am happy with that as its £1.41 for petrol
and 69p for LPG


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PostPosted: Mon Dec 19, 2011 10:14 pm 
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Joined: Thu Dec 01, 2011 10:24 pm
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Location: barnstaple
just have done my vauxhall vectra 2007 1,8 vvti sri, by 2 lithuanian guys in barnstaple, d&bautogas.. kme conversion, 750pounds, full tank 64liter,done 440miles

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PostPosted: Sat Jan 07, 2012 10:06 pm 
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hi tomas,i have done with my wifes nissan micra 1.0l 34l 320miles on lpg,,,same conversion as yours kme nevo,which was done by two lithuanian guys in barnstaple,im very happy that i can drive so cheap....


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PostPosted: Thu Jan 12, 2012 7:47 pm 
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Joined: Tue Jun 03, 2008 3:41 pm
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Location: Pontypridd
2003 53 Corsa 1199cc approx 270mile on 37litres

£10 = 15.4 litres
£10 = 112 miles

Normal combined driving on 'A' roads and motorway

I think the thread should be started again with How far do you get on 30 litres?
As it stands you can hardly draw any comparison between the posts because there;s no continuity.

I can increase my range with 100% motorway but surprisingly not by much, I think 100% motorway I might be able to get 310 miles but I have never really measured it.

My old car a 2.0 litre Omega used to get 344 miles city driving and 700 miles on the motorway on one 113 litre tank of LPG.


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PostPosted: Fri Jan 13, 2012 11:45 pm 
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Hi. I'm new to the Forum and LPG. I thought about it for years and should have changed sooner!

I have a 1.8 Rover 75 and when I'm doing 60 - 70 mph mostly Motorway (with some Town) it's about 100 miles for £10.00.

P&L


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PostPosted: Fri Jan 13, 2012 11:47 pm 
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Joined: Mon Jun 21, 2010 9:19 am
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Rosanbo wrote:
I think the thread should be started again with How far do you get on 30 litres?
As it stands you can hardly draw any comparison between the posts because there;s no continuity.

Or how about a revolutionary idea - we all compare miles per gallon? :wink: :lol:

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PostPosted: Sun Jan 22, 2012 4:06 pm 
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Joined: Wed Sep 29, 2010 5:01 pm
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Location: Yorkshire
Hi,

I have converted hundreds and hundreds of vehicles!

Most vehicles get around 10% less mpg on LPG than on petrol. The worst case scenario is about 25% more LPG than petrol. The best case is about equal mpg to petrol... But most vehicles use about 10% more LPG.

Simon

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PostPosted: Tue Jan 24, 2012 2:45 pm 
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Joined: Fri Oct 07, 2011 12:25 am
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Location: Carmarthenshire
Hi again folks.
Toyota Carina "lean burn" 1.8 gsi hatch.
With BRC Just system single point.!!
back seats down and boot full with stuff, spare wheel, trolley jack, boxes of tools etc etc

mileage same for town as motorway driving for me!!

23.67 lt = 150 miles cost £16 eg 29mpg on lpg@ £0.679p local!!!
140 lt = 890 miles cost £95 eg 29mpg on lpg @ £0.679p motorway !!!
petrol 34mpg local !! @ £1.33 150 miles = 20lt cost £26
petrol 40mpg motorway !!@ £1.33 890miles = 101lt cost £135.


hope this is understandable !!!

The only thing i would change would be the size of my LPG tank 42lt useable 33lt too small and too many stops to fillup!!
Lights start flashing even with over 10lt still in tank.
so refill at under 20lt. pain..
:x


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PostPosted: Tue Jan 24, 2012 8:47 pm 
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Joined: Sat Dec 15, 2007 1:26 pm
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Hi Everyone :
I am new to owning an LPG car , so please advice me if this fuel consumption is correct ?

Vehicle : Mercerdez E320t (3.2ltr) , Estate V6 Auto
Romano squential system

Around Town /Short Journeys
50 ltrs of Lpg @ 71p/ltr i get around 170-180 miles , driving with care and attention ie, very slow with a very light right foot....

I havnt taken her on a long journey as yet but when i do i will get some figures posted here...
I'm looking forward to a reply from someone who has a similar car or has the experience to say if this consumtion was good or poor ?
Kind Regards


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PostPosted: Sat Jan 28, 2012 9:45 am 
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Audi S6 4.2 V8 Quattro 340bhp fitted with a 60 litre tank. I get between 100-140 miles out of a full tank, depending how I drive which is quite hard most of the time.

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PostPosted: Sun Feb 05, 2012 4:32 pm 
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I have a 2007 BMW 3 series E90 318i (2 litre engine) with an lpg tank of 60 litres = 48 litres usable capacity. It has a good quality Versus system fitted for nearly 2 years now, converted professionally by a UKLPG BRC specialist at a cost of £1100.

This gives 330 miles on a full tank of lpg = 31.4 mpg (mainly local driving, some motorway)

Petrol on a combined cycle would normally be around 35mpg, therefore 10% drop in economy with lpg.

I have a more expensive flash lube based system fitted (VAP) which is not really necessary for BMW engines, but is more of a safe-guard measure.


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PostPosted: Fri Feb 10, 2012 10:11 pm 
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volvo 120 estate 2.0 litre mixer type system getting about 21-22mpg round town 330miles to the tank which is 94 litres


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PostPosted: Fri Feb 17, 2012 10:01 am 
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On my MK4 golf 1.6

on petrol £10 7.0 -7.5 Liters will get me 54-60 miles, I always stick V Power in now!

LPG £10.26 at 78.9p my expensive local garage gets 13 liters another (gallon and a bit over petrol ) which got me 95 miles the other day, until I go somewhere cheaper to fill right up.

A full tank of branded petrol around 50 liters gets me 380 miles £65-70
A Full Tank of Tesco petrol gets me 350-360 miles

A the last full tank of gas 44.5-45 from the shell pumps about £34 @75.9p about a liter before it went up the other weekgot me 300 miles. Other places don't seem to up as much in and the cheapest place cuts off at 36liters :( .

I don't usually go anywhere near a motorway.


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PostPosted: Thu Feb 23, 2012 10:04 pm 
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P3DRO wrote:
Hi Everyone :
I am new to owning an LPG car , so please advice me if this fuel consumption is correct ?

Vehicle : Mercerdez E320t (3.2ltr) , Estate V6 , 4matic ,Auto
Romano squential system

Around Town /Short Journeys
58 ltrs of Lpg @ 71p/ltr , Which is a Full Tank , i get around 215-230 miles , driving with care and attention ie, very slow with a very light right foot....
With each Full Tank of Gas it uses around £15 of Petrol....

Im sorry but can someone help me i think this does NOT look economical to me ?
Is this consumption = Good ? Poor ? or very Bad?

I have not taken her on a long journey as yet but when i do i will get some figures posted here...
Kind Regards


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PostPosted: Sat Feb 25, 2012 7:25 pm 
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@ P3DRO

If you do shorter journeys your car will use petrol for the warm up period (which in the winter can take 4-7 mins depending on outside temp and how congested the road is - an open road will allow the engine to heat up more quickly and switch over to LPG faster) So a 10 minute journey in winter may be running on petrol for 85% of the journey - warm up period- and then 15% LPG for the remainder 2 mins of the journey!) In the Spring/Summer/Early Autumn you could reverse those figures % as the warm up period is much shorter and you will mainly use LPG with barely any petrol use.

Your LPG consumption seems fairly poor (more than 50% worse than mine) but your engine is 50% bigger than mine and your car is an automatic.

You didn't mention how old your car is either.. an older engine will be less efficient...


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