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Converting My Xr6t To Lpg


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  • Member For: 17y 3m 14d
  • Location: Perth, WA
Good to see you can follow maths :P

The government rebate was put in for one reason only, so that in a short time they will cash in BIG time when they slam down huge taxes on it. Diesel used to be cheaper than ULP by a fair amount, not its considerably more expensive because it is now mainstream...

Gas is used at a greater rate. People look at a 1:1 ratio, and then do the math on the probable savings... its all wrong... Most people sell their car before the savings show any advantage.

Oh well, everyone is different.

yer c wot skool tort mi?? lol

I hear what you are saying so lets use my wicked sick maths skills to take this further

we've established I am forking out $1800.

Using todays fuel prices as a guide (granted this fluctuates a fair amount) we have in Perth:

LPG = 55c per litre

98RON (which my car is tuned for) = $1.60 per litre

Fuel Tank for this scenario = 60L

98RON - LPG ---> $1.60 - 0.55 = $1.05 difference per litre (bear with me here)

Now lets say I fill up once a week (which I do, usually more than once) we have:

60Litres x $1.05 saving per litre = $63 saving per tank

$63 saving x 52 weeks in a year = $3,276 saved per annum(stay with me)

Now I can see you screaming at the computer screen saying "there isn't a 1:1 ratio of saving here". Fair enough so going on some estimates of my friends Vapour Injection Systems and the advice offered by the various LPG experts I have spoken to, they have advised that the Vapour Injection Systems are approximately 5% less fuel economical than petrol (yes, you heard it right, LPG has come a LONG way since the early days).

So out of $3,276 I can only claim that 95% of that is a saving:

$3,276 x 0.95 = $3112.2 saved per annum

Taking into account your assumption that LPG will increase by almost 200% shortly to $1 per litre, for arguments sake:

$1.60 for 98RON - $1 for LPG= 60c saved per litre

60L x 60c = $36 saved per tank

$36 x 52 weeks = $1,872 saving per annum

$1,872 x 0.95 = $1,778.4 saving per annum

that's not even factoring in the amount that PETROL itself will go up by the time the government slaps the tax onto LPG.

So I can hear you saying that you believe Vapour Injection is not that efficient (which it is) well for arguments sake lets take both of my answers and say it is only 80% as efficient as petrol:

Using my result for todays petrol prices --> $3,276 x 0.8 = $2,620.8 saving today

Using my result for an LPG tax in a few years --> $1,872 x 0.8 = $1,497.6 saving in the future per annum without even factoring in an increase in the price of petrol which really is ludicrous to assume that...in fact if we listen to the 'experts' on the news and do this scenario again with petrol getting to $2 per litre for ULP by the time christmas comes, that pretty much covers any loss I incur by an LPG tax being introduced and I am almost back to saving almost $3,000 per year on fuel.

At a worst case scenario I am still saving $1500 a year in fuel which takes me just over 1 year to recoup the costs. Granted I will have an additional annual servicing fee of my LPG system but I still come out on top, by a lot. I intend to keep this car a long time so I will make my money back.

And I dont need to worry about petrol running out, demand outstripping supply and oil becoming more and more scarce.

People still cling onto the old ideals of LPG being unreliable, inefficient, etc but LPG systems have come a long way in recent years. Checkout this thread of a new LPG technology being introduced over east called LPG Liquid Injection, the potential is incredible - http://www.fordforums.com.au/showthread.php?t=11217031

I actually didn't make this thread to justify my reasoning for going to LPG it was more to advise people that they have some options now in WA but I do appreciate the discussion,

Bring on filling up my car for $30 each time.

T

Edited by ThundaBird
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  • Member
  • Member For: 17y 3m 14d
  • Location: Perth, WA
LPG injection is the way to go nowadays, you might even gain a couple of rwkw!

*nods* I will actually pay for extra Dyno time at Rage Racing and they will tune the car as far as it can go on this particular LPG system which is good for 450HP.

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  • Moar Powar Babeh
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  • Member For: 19y 2m 4d
  • Gender: Male
  • Location: Perth

http://www.theage.com.au/articles/2003/10/...l?from=storyrhs

http://www.tacc.net.au/News/News/FuelExcis...58/Default.aspx

http://www.aph.gov.au/library/pubs/rn/2003-04/04rn44.htm

Some anecdotal some factual..... I dont think the future of Cheap LPG is very secure unfortunatly. Especially as demand goes up.

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  • Moar Powar Babeh
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  • Member For: 19y 2m 4d
  • Gender: Male
  • Location: Perth

I looked seriously at injected LPG for my Rangie, and after some research baulked at the idea because i dont think it'l be too long before lpg is over $1.00 a litre. I know it has hit 89c in the eastern states. Once it hits 80c+ a litre IMHO vapou systems will dies out. I love the idea of injected LPG but i think it would take me too long to recoup the cost unfortunatly.

Luke

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  • Member For: 17y 3m 14d
  • Location: Perth, WA

There is a really good writeup on the current LPG, Diesel and Petrol problems in the latest John Mellors Go-Auto News released this morning. This includes a discussion on the viability of each type of fuel and advantages/disadvantages.

Click on the following link and then click on the link on the right hand side called 'Get e-news now'. Warning: the document is about 5mb so you might be better off right clicking on the 'get e-news now' link and hitting 'save target as':

http://www.mellor.net/mellor/mellorweb.nsf...GoAuto%20e-News

T

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  • Member For: 17y 3m 14d
  • Location: Perth, WA

The parts arrived this week for the conversion, the car is booked in on Monday and they said they will need it for approximately 2 days to ensure everything is OK. We will have a chance to drive the car for a week before we fly out to Mongolia,

Will try to post up a review for you all before we leave,

T

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  • Member For: 17y 3m 14d
  • Location: Perth, WA

Guys,

the latest John Mellors GoAuto news is out and it discusses the new Liquid LPQ technology. A really good read. You can get it here:

http://www.mellor.net/mellor/mellorweb.nsf...GoAuto%20e-News

The link above only links to the most current edition so if you are reading this some distant time in the future...then the back-issues can be read here (compare the date of this post to the dates on the website):

http://www.mellor.net/mellor/mellorweb.nsf...n/Back%20Issues

T

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