dieselgas conversion

Submitted: Monday, Oct 02, 2006 at 19:42
ThreadID: 38203 Views:4535 Replies:6 FollowUps:11
This Thread has been Archived
I've searched the archives, read dieselgas.com.au, looked on other sites, spoken to installers and people who know someone that's done a conversion.....Does anyone have anything negative to say about this. Everyone seems so positive (except one knucklehead I spoke to at a 4X4 shop who didn't know his facts or anyone who had done it).
I'm thinking of doing it for my 3 ltr turbo hilux.
Back Expand Un-Read 0 Moderator

Reply By: Willem - Monday, Oct 02, 2006 at 20:22

Monday, Oct 02, 2006 at 20:22
This is not a negative comment but I need to ask

What are the advantages of a dieselgas conversion?
How long will it take to recover the cost of the installation?
Will the engine run hotter?
What will the long term effects be on engine wear?

If you have satisfied yourself that it would advantageous to go with the dieslgas, then go for it

Cheers
AnswerID: 197502

Reply By: awill4x4 - Monday, Oct 02, 2006 at 20:30

Monday, Oct 02, 2006 at 20:30
I saw an install on a Discovery turbo diesel by one of the largest LPG installers here in VIC and it was a very unimpressive job.
A simple egg ring mixer installed upstream of the turbo into the turbo air intake so it restricts airflow for a start. A simple variable valve assembly to regulate gas flow.
Then we have the added problem of the LPG being introduced upstream of the turbo, it is then compressed and is sent on its way to the engine through the intercooler and all its associated plumbing to the inlet manifold. We now have an explosive mixture under pressure in a whole lot of plumbing, admittedly, a diesel is far less likely to suffer a backfire than a petrol engine but this isn't "world's best practice" at all. Imagine a ZD30 with a leaking intercooler (a few have been reported) leaking LPG around the engine bay and an ignition point, not a pretty thought.
In the early days of petrol turbo's when carby's were mounted upsteam and some bright sparks used intercoolers as well the petrol would condense and collect in the intercooler and if there was a backfire which was pretty common in those days it would blow the front of the car off.
People quickly learned don't put an explosive mixture under pressure through the intercoolers.
Regards Andrew.
AnswerID: 197504

Reply By: Truckster (Vic) - Monday, Oct 02, 2006 at 21:40

Monday, Oct 02, 2006 at 21:40
Where do u mount the tank so you dont lose normal fuel capacity...

what happens when you run out of LPG since you wont have matching capacity in LPG to Diesel tanks, so when you think about it, you keep driving in the end on pure diesel anyway so in reality there is no gain long term. Just a feel good while the tank is full.
AnswerID: 197523

Follow Up By: PK Eildon (VIC) - Monday, Oct 02, 2006 at 22:32

Monday, Oct 02, 2006 at 22:32
'you wont have matching capacity in LPG to Diesel tanks'

Who says ????

Mine has 180l diesel
50l gas

Run out together approx.

PK
0
FollowupID: 456032

Follow Up By: Richard Kovac - Monday, Oct 02, 2006 at 22:41

Monday, Oct 02, 2006 at 22:41
Hi PK

You have it fitted don't you?

If so is it any good?

Hows it work? do you get more bang for your buck, by using less diesel or more LPG?

The only saving I can see is that less diesel is used

Regards

Richard
0
FollowupID: 456035

Follow Up By: PK Eildon (VIC) - Monday, Oct 02, 2006 at 22:57

Monday, Oct 02, 2006 at 22:57
Richard

Had it since Apr. Still more than happy with it. Have posted previously on this subject. There are savings, but most comes from the 20-25% gas use replacing 20-25% diesel use. There is 20% more HP, 20% more torque and torque starting 500rpm lower. Engine is quieter at speed and more responsive. Oil stays cleaner. And to answer Willem above EGT marginally lower, so therefore assume engine cooler.

Unfortunately I couldn't give a rats as to how much it is saving, and unable to create any reasonably scientific way of creating figures, too many variables on a street used vehicle, and therefore not motivated to keep records. It is cheaper but best guess may be about $50 a fill for me, or $50 per 1100k.

PK
0
FollowupID: 456042

Follow Up By: awill4x4 - Monday, Oct 02, 2006 at 23:11

Monday, Oct 02, 2006 at 23:11
PK, how is your LPG introduced into the system? Is it before the turbo or into the manifold after the turbo?
Regards Andrew.
0
FollowupID: 456048

Follow Up By: PK Eildon (VIC) - Monday, Oct 02, 2006 at 23:19

Monday, Oct 02, 2006 at 23:19
Andrew

Before turbo. Just a 1" pipe into side wall of air intake pipe. When turbo spools, cops cold gas in its face which quietens it.

I note someone talking about creating explosion in intercooler. I think you need a fairly specific air/gas ratio to create a bang and I don't think that ratio is met until the combustion chamber. I stand to be corrected.

PK
0
FollowupID: 456052

Reply By: Member - Jay Gee (WA) - Monday, Oct 02, 2006 at 23:18

Monday, Oct 02, 2006 at 23:18
I actually followed a current model Landrover 110 to work last Thursday morning and it was taking off just a little bit too fast to be a normal Landy. My work vehicle (2006 Navara 3 l turbo diesel) couldn't keep up with it. I eventually caught up with it when it stopped and confirmed my suspicion that it was diesel/gas. I got a chance to test drive it last Friday. Drives like a petrol vehicle, runs very quiet, has good take off from stop. I think the only negative is to watch out for speeding fines. Costs about $3500 - and with Federal Government rebate of $2000 plus WA government rebate of $1000 only leaves $500 left to pay.
AnswerID: 197549

Follow Up By: Member - Mary W (VIC) - Tuesday, Oct 03, 2006 at 11:44

Tuesday, Oct 03, 2006 at 11:44
Hi JG ,
Did you notice where the gas tank was located and what capacity it was?Might be a consideration for my 98 300tdi.
Cheers ,Mary
"Some people walk in the rain,others just get wet."

Lifetime Member
My Profile  My Position  Send Message

0
FollowupID: 456101

Follow Up By: Member - Jay Gee (WA) - Tuesday, Oct 03, 2006 at 12:34

Tuesday, Oct 03, 2006 at 12:34
Tucked in under the right hand side back door - about 30 litres. Didn't really protrude very much so you don't lose clearance.
0
FollowupID: 456108

Reply By: PhilZD30Patrol - Tuesday, Oct 03, 2006 at 08:54

Tuesday, Oct 03, 2006 at 08:54
Hi Twinkles

I have just had LPG installed to my GUII Patrol 3 litre DT. I have not completed 1,000 kms yet but have been on a short 4wd trip with a few short low range sections and some steep highway hills.

Noticed an overall improvement in performance and engine smoothness.

So far the economy seems great but it is far to early to start quoting numbers.

I have a 30 litre LPG tank mounted underneath my Patrol. LPG is injected into the air intake at about 30 litres of LPG per 100 litres of diesel. The savings are not as significant as a petrol LPG installation, but with the Governments rebate of $2,000, I calculate the pay back will be take less than 40,000 kms.

I have researched LPG diesel dual fuel on the internet. It has been used in the UK and Europe for some time. It produces savings in the use of fossil fuels, lower exhaust emissions of noxious and greenhouse depletion gases and lower exhaust temperature.

Do a search on Google Australia using "dieselongas" and "dieselgas" for more information.

I could not find any negative reports from qualified and experienced sources.

Hope this helps

Regards
Phil
AnswerID: 197582

Reply By: D-Jack - Tuesday, Oct 03, 2006 at 09:35

Tuesday, Oct 03, 2006 at 09:35
I'm still waiting for the answer to the question 'what happens when the diesel runs out'? Can you still keep driving with diesel only performance, or are you stuffed? What happens when you do a Simpson trip, can carry 140L of diesel (some in Jerrys) but only have a 30L Gas tank, or do the CSR, you can pick up diesel but can't pick up gas??

Anyone got any comments on using it on a TD Jackaroo?

D-JAck
AnswerID: 197590

Follow Up By: Twinkles - Tuesday, Oct 03, 2006 at 09:41

Tuesday, Oct 03, 2006 at 09:41
Go to "www.dieselgasaustralia.com.au". It runs out when the diesel runs out. If you can't get gas then it will run on diesel only until you can fill up the gas.
0
FollowupID: 456083

Follow Up By: D-Jack - Tuesday, Oct 03, 2006 at 10:03

Tuesday, Oct 03, 2006 at 10:03
Thanks Twinkles, just answered the question myself by reading the website. anyone point me to an installation service in SA? Can't seem to find anything on the web.

0
FollowupID: 456086

Follow Up By: PK Eildon (VIC) - Tuesday, Oct 03, 2006 at 11:20

Tuesday, Oct 03, 2006 at 11:20
CONTACT DETAILS

DIESEL / GAS AUSTRALIA
15 McInnes St
Ridleyton 5008
South Australia

PHONE (08) 8340 2366
Fax (08) 8340 3266

Actually the bloke that invented and started the present system. Feather in the cap for SA.
0
FollowupID: 456095

Follow Up By: Twinkles - Tuesday, Oct 03, 2006 at 12:07

Tuesday, Oct 03, 2006 at 12:07
This sytem is available in other states. If you're in Victoria then you ring Simon on 0414819819 and he will give you the names of installers.
0
FollowupID: 456105

Sponsored Links

Popular Products (9)