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LPG opinions - What's stopping people converting?

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I have a couple of vans I might look at converting. I like the idea of CNG duel fuel atm.Is their an advantage of LPG over CNG or vise versa?
 
moXJO said:
I have a couple of vans I might look at converting. I like the idea of CNG duel fuel atm.Is their an advantage of LPG over CNG or vise versa?
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As far as I know there is no CNG systems for sale in australia,

The main difference is that LPG is readily available all over australia and has a smaller lighter fuel tank and because it's a liquid it carries more fuel so you get a similar range from a tank of lpg as you do from petrol...

CNG is Compressed natual gas and there is no commercial filling infrasture,.... Natural gas does not readily liquify under pressure as LPG does,... so CNG tanks are larger and heavyer because they are built to take higher pressures and they don't hold as much fuel because it's not in a liquid state,.... .

So CNG is cheaper than both petrol and lpg, But the cng cars have a heavy fuel tank and less range and there is also no filling infrasture in australia yet,.... however CNG is being used on some sydney buses and council trucks and is really big in japan and india and saudi arabia.
 
Roughly 25 MJ per litre of LPG, 35 to 42 MJ per litre for liquid petroleum fuels (petrol's at the low end, high sulphur heavy fuel oil at the high end).

LPG is 83.9 at the pump down here so adding 25% or so makes it equivalent to $1.05. Still a saving if you use enough to make it worthwhile but CNG would be cheaper.
 
Smurf1976 said:
LPG is 83.9 at the pump down here so adding 25% or so makes it equivalent to $1.05. Still a saving if you use enough to make it worthwhile but CNG would be cheaper.
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Hopfully we will see CNG in australia in the not to distant future,... I wonder if it would be possible to replace my petrol tank with a CNG one day, So i would be duel fuel on LPG and CNG... that way I could be using CNG most of the time but on long trips flick over to LPG if I can't get to any CNG filling equipment.

83.9 cents a litre,.. that harsh. where abouts are you.
 
Sorry for not having a clue on this subject.But is their a potential for CNG or LPG to not be able to keep up with demand if it were to become mainstream??
 
CNG is available at 1 location in Canberra and i believe there's a trial underway
in Melbourne....CNG is just compressed Natural gas, the same gas most homes
use for heating and stove tops, hot water etc, except that its been
compressed for vehicle use.

CNG gets u about 200 km on a full tank depending on engine size and driving conditions.

moXJO said:
Sorry for not having a clue on this subject.But is their a potential for CNG or LPG to not be able to keep up with demand if it were to become mainstream??
Click to expand...

Australia has about 100 years of reserves at current levels of use...as long as we stop selling
it to the Chinese for 10 cents a liter....and lets all keep in mind that NG - Natural gas can be
created by composting waste etc....so its defined as a renewable fuel.
 
moXJO said:
Sorry for not having a clue on this subject.But is their a potential for CNG or LPG to not be able to keep up with demand if it were to become mainstream??
Click to expand...

No.

Austalia has more reserves of LPG than it does of oil,.... 20% of LPG comes from the refining of crude and the remainder is produced from gas and oil fields directly and there is plenty more LPG reserves left than oil reserves. And there is a general trend around the world that as companies are searching for oil the oil feilds they are targeting are having a much smaller ratio of oil to gas,... meaning that the oil feilds that are coming on line now are having a much higher out put of LPG than OIL....

As for CNG,... Natural gas is actually in abundance when compared to oil,... Australia actually has about 300 years supply of natural gas at todays production level if you include the coal seam methane,
 
Well it is "extracted" from crude oil and natural gas.

 
Because it's crap.

Diesel is the better option.
 
wayneL said:
Because it's crap.

Diesel is the better option.
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I don't know about europe but in Australia LPG is far cheaper than diesel.

and I think in todays energy market we need to spread our usage accross to the under utilised fuels such as LPG and eventually CNG.
 
Tysonboss1 said:
I don't know about europe but in Australia LPG is far cheaper than diesel.

and I think in todays energy market we need to spread our usage accross to the under utilised fuels such as LPG and eventually CNG.
Click to expand...

I've had LPG vehicles for years in Oz. IMO it's crap.

You lose power, you lose efficiency, maintenance is more costly. Give me diesel any day.
 
wayneL said:
I've had LPG vehicles for years in Oz. IMO it's crap.

You lose power, you lose efficiency, maintenance is more costly. Give me diesel any day.
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1, You won't notice any loss of power in the new systems

2,if by efficiency you mean you burn 25% more then yes you do,... but it is 70% cheaper,

3, In three years I havn't encountered any extra maintance costs.

If you did your sums you would see Lpg beats diesel
 

Have To agree with all of the above Tyson and add a few extra points.

1. Diesels engines cost an absolute fortune (8k-15k on average)to rebuild, require specialist knowledge, tools & the single rails pump systems these days are throw away and have to be sourced new at $$$.

2. Diesel fuel is still the [worst] polluting fuel out there for the masses to run on while the industry is still working on keepin 100yr old combustion engine technology running on this dirty unrefined fuel.

3. With China, India & many other under developed countries tied to this fuel only, which are willing to pay more n more so can't see diesel prices coming down in the near future.

4. Petrol engine luckly are able to be converted to lpg, cng & possibly full hydrogen one day.

SevenFX
 
If given the choice between changing their mind or proving why they shouldn't have to, most people will go about providing proof.
 
With diesel ,do you need to get the vehicle serviced every 5000 km ? If you need to this it is a disincentive?This can prove inconvenient if under the manufacturers ' warranty...especially if you do a few miles.
Is this so ,or have I got it wrong ?
 
Tysonboss1 said:
2,if by efficiency you mean you burn 25% more then yes you do,... but it is 70% cheaper,
Click to expand...
Depends where you live. If you can get LPG 70% cheaper, it's worth it. I haven't seen it 70% cheaper for years... more like 40-50% cheaper last place I lived in Oz, making it only marginal and not worth the hassle.
 
In WA there is a state subsidy to add to the federal one. I converted a commodore 10 000 km ago. The conversion was fully covered. Generally LPG is 65 - 70c.
Car runs fine although not as well when initially started on a cold day.
2 friends have converted their Landcruisers. 1 tows a 22' caravan without any problems.
 
If you did your sums you would see Lpg beats diesel
Click to expand...

Dont know about that.
I have had diesel trucks with over 1 mill km on them and never pulled down.
Never seen an LPG run motor come near to that.
 
wayneL said:
Depends where you live. If you can get LPG 70% cheaper, it's worth it. I haven't seen it 70% cheaper for years... more like 40-50% cheaper last place I lived in Oz, making it only marginal and not worth the hassle.
Click to expand...

I was at the servo this afternoon...metro Sydney.

Pretty sure LPG was 68 cents, and i know that petrol was $1.59 so that's about
60% cheaper :dunno:....im hopeless at maths.
 
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