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XF 250 lpg fuel economy


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#1 lenners

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Posted 24 August 2015 - 08:38 AM

I have my suspicions that my XF isn't running to good on gas. Most of the time I'll get about 400km to the tank which is 65 litres. The car hasn't been properly tuned since I got it in 2012, My Dad and I did adjust the fuel mixture a bit, but that didn't help. It's auto, dual fuel, Impco 300A Mixer with a 'LPG spares' B2 converter. Car is as stock as stock can be, still has the date of manufacture stickers on the seatbelts. I don't drive it hard (it's a grandpa car so I drive it accordingly), and most of the time is spent on the highway, no city driving. Would it be worth taking it Lakeside Automotive in Reservoir (where I got the gas installed) and they can tune it? Could this be something I could fix up by tweaking with the mixtures?

 

I've recently filled up at Supagas, and it may just be a placebo effect but the car seems to run better with a marginal increase in fuel economy.



#2 Outback Jack

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Posted 24 August 2015 - 10:32 AM

400-450km from a tank of gas is about what me mate got in an xg with 4L.
Tune on the gas may make it run a bit better, worth a shot.
Worse that happens is ya get to find if ya gas system is operating properly.
Jack.

5f0679eb-c1e0-42e1-b938-f63b5cd59a98_zps

 

 

 


You Can't park that Holden in MY Driveway.......................This is Ford Country.

 

 

I had my Ute raised when everybody was lowering theirs so I could drive over shit.

A Country Ute need to actually be able to get over a speed hump... or it's no good for the farm.

 

 


#3 87xfwagon

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Posted 24 August 2015 - 01:46 PM

20L per 100km on the highway here, 350km to 72L.



#4 lenners

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Posted 24 August 2015 - 05:09 PM

400-450km from a tank of gas is about what me mate got in an xg with 4L.
Tune on the gas may make it run a bit better, worth a shot.
Worse that happens is ya get to find if ya gas system is operating properly.
Jack.

Yeah you'd be right in saying that there's no harm in getting a tune, the economy can only get better.

 

20L per 100km on the highway here, 350km to 72L.

I thought mine was bad, although by your username I'm guessing you've got a wagon, I wouldn't expect a wagon to use a whole lot more than a sedan. I'd be buggered if my XF ran that poorly.



#5 deankdx

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Posted 24 August 2015 - 06:59 PM

all My crossflows except one used to average 15litres per 100km.
My mildly worked one used to use 20per 100km, used to go well though.

 

i think you'll be lucky to improve it enough to cover the cost of the tune over many months.



#6 87xfwagon

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Posted 24 August 2015 - 07:56 PM

Yeah you'd be right in saying that there's no harm in getting a tune, the economy can only get better.

 

I thought mine was bad, although by your username I'm guessing you've got a wagon, I wouldn't expect a wagon to use a whole lot more than a sedan. I'd be buggered if my XF ran that poorly.

 

A 1,700 kg, 3 speed, 2.77 diffed XF wagon uses LPG whether you like it or not. Fill the tanks and you've got 1,800kg. 



#7 deankdx

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Posted 24 August 2015 - 08:03 PM

A 1,700 kg, 3 speed, 2.77 diffed XF wagon uses LPG whether you like it or not. Fill the tanks and you've got 1,800kg. 

My wagon, sedan, ute, and fairlane all managed 15 litres per 100km
that was auto, 4 speed or 5 speed with 2.77 or 2.92 diffs and 3.23 sometimes with 5 speed boxes. made no difference



#8 demmo

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Posted 26 August 2015 - 03:21 PM

As a guide My old xf on gas also had a 65 litre tank with a usable 59/60 litres and over the last 12 months it averaged between 400 an 420 ks a tank (6.6 ks / litre). My dedicated gas au averages just over 7 ks /litre an both vehicles are serviced by same ford mechanic hope this helps
Cheers demmo

#9 owner

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Posted 28 January 2016 - 08:13 PM

Old thread I know but I would love to get more than 240kls a tank out of my xf. I have a 65litre tank. The system even when new still just gave me 240kls. It's a carby, auto 250.

#10 whitefordxf

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Posted 28 January 2016 - 09:53 PM

My 5 speed xf ghia regularly gets 15ltrs/100  .. With the price of petrol $1.10 and gas 75c it hardly seems worth being on the old gas... Bring back the days when gas was 20c ,,, about the third the price of petrol 



#11 crazy2287

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Posted 28 January 2016 - 09:57 PM

Whats the base timing?
"Your X has a red book value of 50 cents - but you still love her and can't bear the thought of the 1000+ hours of restoration... being taken by some thoughtless knob who carelessly shits on your world... The value is to the owner." - XFEvil

#12 bravocourier69

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Posted 16 November 2016 - 08:56 AM

hi i had to xfs back in the mid 90's and they were on gas the ks that you say your getting out of your tank is the norm thats what i used to get out of the xf's that i had i liked them so much that i have just purchased a panel van ok hope that helps you out 

 



#13 bravocourier69

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Posted 25 May 2017 - 08:03 PM

a cross flow falcon around town will only give you 250 ks you will get upto 350 if you go on the hiway from memory when i had my to xf falcon they were both on gas and that is all i got i now have a mazda b2600 and i only get about the same as the falcon but it is 4x4



#14 deankdx

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Posted 25 May 2017 - 09:15 PM

a cross flow falcon around town will only give you 250 ks you will get upto 350 if you go on the hiway from memory when i had my to xf falcon they were both on gas and that is all i got i now have a mazda b2600 and i only get about the same as the falcon but it is 4x4

is that with a 30litre tank?
i used to nearly always get 450km per tank on the highway with 70 litres.  worst would be 400 around town






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