LPG for diesels
Submitted: Wednesday, Oct 05, 2005 at 03:22
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Barnesy
Have heard recently that you can now convert diesels to full time LPG. Does anybody know if this is true and if so how good is it? What are the economy figures like? I have a TD42 GQ patrol.
Appreciated.
Barnesy
Reply By: Rosco - Qld - Wednesday, Oct 05, 2005 at 06:27
Wednesday, Oct 05, 2005 at 06:27
G'day Barnsey
As I understand it, LPG is only used as an additive along with diesel to improve combustion.
For full time gas, you need to go CNG .. compressed natural gas. A lot of buses run on it here in Brisvegas. Don't know about ecconomy though.
Cheers
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Follow Up By: Member - JohnR (Vic)&Moses - Wednesday, Oct 05, 2005 at 20:43
Wednesday, Oct 05, 2005 at 20:43
Rosco, I have heard of a company in Victoria that has used CNG in some of their milk tanker collection fleet. It takes about 8 hours to fully refuel and they have been getting very considerable savings in fuel costs, however the repair costs per motor have been 'substantial'. The motor conversion costs were not in-substantial either.
On the additive to diesel burning, I have heard that the crudest addition is a jet just going through a standard tap into the air intake for a very substantial boost in power and burn rate. The burn rate for the diesel going from 73% to in excess of 90%. Been a great boost for hills I hear, but turn it off on the flat. I don't know that Roachies already high heat GU would stand that though.
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Reply By: Kiwi Kia - Wednesday, Oct 05, 2005 at 09:25
Wednesday, Oct 05, 2005 at 09:25
I know of large static diesel engines used for electricity generation and they are started on diesel oil and then the lpg is introduced till the fuel mix is about 90% lpg & 10% diesel. The problem is that there are problems getting the lpg to ignite on its own and it requires the diesel to provide the initial flame for combustion.
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Reply By: Wizard1 - Wednesday, Oct 05, 2005 at 09:35
Wednesday, Oct 05, 2005 at 09:35
You need to consider the availability of these fuel alternatives in remote areas. Some
places only supply diesel. But I suppose a lot of 4WDs never get to those
places either.
I emailed Shell regarding Biodiesel and all I got was this crap about ethanol..they just skirted around the issue. I requested a clearer answer and never got one....suppose they don't want to let on that such a solution may effect their profits.
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Reply By: Kalgoorlie Escapee - Wednesday, Oct 05, 2005 at 09:58
Wednesday, Oct 05, 2005 at 09:58
I knopw there has been previous discussion on this matter. Try a search. It is known as diesel fumming 40% LPG and the remainder diesel. The mix is variable an depends on loads. There is a company in
Adelaide that does it. Is common practice in heavy transport (Europe) and buses in
Perth.
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Reply By: Member - Alan H (QLD) - Wednesday, Oct 05, 2005 at 16:41
Wednesday, Oct 05, 2005 at 16:41
This is the contact that was on the
forum before. It looks very interesting. The lpg acts like a fuel additive and of course it gives slightly longer range and you can go on pure deisel if the lpg runs out.
I don't know of anyone trying it. The site listed is obviously biased but have a look.
http://www.dieselgas.com.au/home.htm
Alan
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Follow Up By: navcom - Thursday, Nov 03, 2005 at 22:20
Thursday, Nov 03, 2005 at 22:20
my name is kenny i know a little bit about this subject
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Follow Up By: keny - Friday, Nov 04, 2005 at 01:10
Friday, Nov 04, 2005 at 01:10
i have a nissan urvan thats been running on 40% mixture for 5 years now its been reliable does about 1000kls per
tank 60l diesel 20-30l gas it starts quicky 70% less smoke at full boost power is td42ti did this conversion myself i am a heavy stream diesel mechanic currently employed by cummins diesel hope this helps thanks
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Reply By: Sarg - Wednesday, Oct 05, 2005 at 21:29