Isuzu Trooper Owners Club UK™

paggers · Newbie Joined: 07 Mar 2006 Posts: 9

Been running my 3.1 on bio diesel for well over a year, not 100% of the time, probably every other tank full.
Had no problems at all, doesn't start quite so easily & a bit smoky when cold, fine when warmed up.
Have to drain the fuel filter more often, get quite a thick orange coloured oil out of it!
Also use veggie in it when I can be bothered to load up at the supermarket, or persuade my wife to!
Mix up to about 10% into the bio or normal diesel.
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93 trooper bighorn LWB 3.1TD

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REMF · ** Joined: 22 Jul 2007 Posts: 111 Location: Worcs

Thanks paggers Very Happy

I will give it a bash now

I was going to go 50/50 to start with, see how it goes
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REMF · ** Joined: 22 Jul 2007 Posts: 111 Location: Worcs

Chucked 1/2 tank of bio in today, at 75p a litre it would be rude not to.

No funnies so far, and she had a good run today.

Mind you the other 1/2 was a mix of diesel & SVO
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Lenagh · ** Joined: 17 Jan 2005 Posts: 112

Hi guys can anyone confirm how they are getting on with veg oil from the supermarkets in their 3.1's ?

I'm running a bighorn 3.1td and am looking to start adding some in due to the distances I travel.
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Lenagh 99' s14a and '95 Bighorn 3.1TD support truck !

dxmedia · Posted: Fri May 23, 2008 12:07 Post subject:

Lenagh · ** Joined: 17 Jan 2005 Posts: 112

Thanks for the feedback matey how long have you been running it like that and whats your normal mix ? I think my engine model is the 4jg2 3.1 don't know if this is the same as your own.

Finally before I go out and get some oil to experiment with is there a preferred brand / source (corn etc) of oil you chaps use ?

thanks again Smile

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Lenagh 99' s14a and '95 Bighorn 3.1TD support truck !

markymoan · Posted: Fri May 23, 2008 12:40 Post subject:

The best brand is the cheapest you can find, I find the better quality oils are thicker and not as good.

I notice someone got bio for 75p last november, its £1.13 here now Sad

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Lenagh · ** Joined: 17 Jan 2005 Posts: 112

sounds like we might be tinkering at the edges now with bio fuels doesn't it Confused

veg oil still knocking out around 70p or so ?
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Lenagh 99' s14a and '95 Bighorn 3.1TD support truck !

markymoan · Posted: Fri May 23, 2008 12:44 Post subject:

Even the price of veg has rocketed in the last few months Sad

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dxmedia · Posted: Fri May 23, 2008 14:13 Post subject:

Don't use anything palm oil based if you can help it, it's a bu66er for waxing. Don't go over 50%, it'll cause issues, don't worry about mr Plod, the government has aloud the use of 2500L of alternative fuels per year per person, and don't worry about the craving for a fried egg sandwich - it's normal.

Keep a spare fuel filter though, veg oil has a large % of glycerol in it (soap) and it'll wash your fuel lines out when you start using it so you'll need to change the filter after a couple of K miles. You'll only need to do this the once though, then back to normal filter change intervals.
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Lenagh · ** Joined: 17 Jan 2005 Posts: 112

nice one mate thanks for that Smile

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Lenagh 99' s14a and '95 Bighorn 3.1TD support truck !

I_n_K · **** Joined: 05 Nov 2007 Posts: 441 Location: N.Essex

Sorry to bump an old one but I'm trying to decide on taking the plunge to bio-diesel (available locally, allegedly, for 86.9p/litre) in the 3.1 and this is the most relevant (and recent) thread I can find..

Are there different types of the 3.1 engine?

Will they all be ok on 100% biodiesel?

While I'm keen to halve the cost of the fuel I'm using, not at the sarifice of my engine. . . coz I can't afford to replace it any time this millenium.
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'93 Trooper Duty 3.1TD

dooley · Posted: Tue Jul 01, 2008 17:36 Post subject:

I run my bighorn on 100% bio, have been since I got it never had any problems with it.
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if you don't get stuck your not trying hard enough LTM No.63

CerbyT · Posted: Wed Jul 02, 2008 11:00 Post subject:

86p a litre for Bio is a good price - thecheapest I've found on Devon so far is around £1.13!!!!

IanP · ** Joined: 13 Jun 2005 Posts: 100 Location: North East

Just thought I would put my 10 pence worth in. Started with 25% veg oil 6 weeks ago, and worked up to 100%. Doesnt like starting at temperatures below 13C on 100%, but once its going its fine. I have now run 450 litres of veg oil through the engine in those 6 weeks with no probs. Finally got round to changing the fuelfilter today and it was clean as a whistle. As long as there is a reasonable price difference I will keep using it. I reckon a 25% mix will be OK in winter, with the big diesels I work on, if you let the viscosity increase too much, the higher pressures in the pump knock 'H' out of the cam followers, and I assume something similar will happen with these pumps although they are a different design. Increased viscosity also gives poor atomisation and the fuel hits the cylinder walls giving a nice cloverleaf wear pattern.
Veg oil per litre at macro today:- 92p, diesel oil £1.32