diesel /gas

Submitted: Monday, Jan 28, 2008 at 16:27
ThreadID: 53972 Views:2175 Replies:5 FollowUps:5
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hi all
have gas fitted to gq 4.2 diesel with turbo fitted gas tank is 30 litres just wondering watt range you are getting out your vehicle sitting on 100 klicks cant get more than 400 klm range installer saying thats about average but talking to different people and reading other forums
similar cars are getting 800 to 1000 klms per tank any comments appreciated. i have the diesel /gas system.

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Reply By: Steve - Monday, Jan 28, 2008 at 19:59

Monday, Jan 28, 2008 at 19:59
Hi Al,

don't have any first hand experience of this but have been looking into it for a while and as far as I can gather, you should see about a 15% increase in range (seems to be about the average improvement in consumption) plus the extra that your 30 litre tank gives you.

It's a bit galling to be paying $4000 or more when it was $2500 before Johnny's $2000 hand out - is that around what you paid?
AnswerID: 284185

Reply By: Member - Matthew ,United Fuel- Monday, Jan 28, 2008 at 20:58

Monday, Jan 28, 2008 at 20:58
Are you saying you cant get more than 400K's using both diesel and gas together.

What are you towing and has it been dyno tuned.

AnswerID: 284203

Follow Up By: al - Tuesday, Jan 29, 2008 at 15:04

Tuesday, Jan 29, 2008 at 15:04
badly worded i get 400klm out of the gas and use about 55 litres ofg diesel it has been dynoed and not towing car is fairly heavily loaded for out back travel.hope that makes better sense

FollowupID: 549073

Reply By: Member - andrew B (Kununurra) - Monday, Jan 28, 2008 at 23:52

Monday, Jan 28, 2008 at 23:52
Gday Al

I think I get your drift, you run out of gas at 400km but still have heaps of diesel left(?) This is normal, you probably have it set up to use about 6litrea of gas per 100km or so....

Mine was set up similar when I first got it, but had it wound down a bit and get about 500km before the gas runs out. I found when I filled (both) I would get about 25l of gas and 55 litres of diesel to about 500km, or you could just fill the gas every 500km and the diesel and gas about every 1000km.

Depending on how it is set up, you will use somewhere between 4 to 1 or 3 to 1 diesel to gas. If you want too even them out, you'd need another 30l gas tank (an on the gu, this would replace the sub tank and fit a 150l main diesel tank)

Hope this sheds a little light

Cheers Andrew
AnswerID: 284251

Follow Up By: Member - Matthew ,United Fuel- Tuesday, Jan 29, 2008 at 16:42

Tuesday, Jan 29, 2008 at 16:42
Sounds to me you guys need to sacrifice some power and get the system retuned for better economy.

FollowupID: 549090

Reply By: Member - Roachie (SA) - Tuesday, Jan 29, 2008 at 07:49

Tuesday, Jan 29, 2008 at 07:49
That's strange.!!

A mate of mine has a 4.2TD GU with the 30 litre LPG tank and a standard sub tank and a 145 litre main tank. He runs out of gas about the same time he has to start looking for diesel from memory. His diesel usage has improved to approx 11.5 litres/100klm and the thing (which is otherwise bog stock standard) goes like a cut-cat!
AnswerID: 284268

Reply By: S&N - Tuesday, Jan 29, 2008 at 22:07

Tuesday, Jan 29, 2008 at 22:07
i have been looking into doing this set up myself. I have spoken EXTENSIVELY to D-Gas, Eco-Shot, LPGAS1 and Diesel/gas. the ONE thing that they all have in common is............. they will tell you that this mod is NOT a better economy modification. it is an out and out power mod. any better economy you get is a bonus. so don't be looking at these setups as a substitute "long range tank" ITS NOT. most of them will tell you that its like putting nitrous oxide on a petrol car, a catalyst for combustion for more power!!!!

don't shoot the messenger! these are direct quotes from either the different company's web sites or from their own mouths!!

hope this helps

AnswerID: 284405

Follow Up By: Member - Gomax (VIC) - Wednesday, Jan 30, 2008 at 10:13

Wednesday, Jan 30, 2008 at 10:13

SWMBO might hear... LOL
FollowupID: 549249

Follow Up By: Geepeem - Saturday, Feb 02, 2008 at 10:49

Saturday, Feb 02, 2008 at 10:49
Have you made any decision about which diesel/gas system is preferred?
I have looked at most of the ones you mentioned as well as Ecomix.
But I find it difficult to do a comparative analysis of the tyes available.
For simplicity I tend to favour the mnechanical type rather than the computerised types.
Any thoughts.
FollowupID: 549878

Follow Up By: S&N - Sunday, Feb 10, 2008 at 22:27

Sunday, Feb 10, 2008 at 22:27
yeah, Im looking mainly at the D-Gas system. fairly impressed with their knowledge and the actuall equipment.
FollowupID: 552037

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