Bio Diesel confusion

Submitted: Wednesday, Oct 25, 2006 at 21:47
ThreadID: 38827 Views:5445 Replies:11 FollowUps:19
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I recently had a long run of over 1000k's round trip in a day. I thought this would be a good opportunity to see how bio diesel would go in my 92 TD 80 LC.

I was pretty chuffed because the consumption worked out to be 10.6 L/100k on the outward leg, and on the return I had to top up with normal diesel and was towing a trailer so it jumped up to 12.8 L/100k. Quite acceptable I thought.

There appeared to be less smoke, the motor was a little quieter and performance was about the same. The bio I was using is the Gull brand blend in whatever percentage blend that is.

Anyway I ran the next tank down to empty before filling both my tanks again with Bio ready to reap the benefits of cleaner air and slightly less cost. Anyway here is where it got confusing for me. Straight after filling this time with Bio diesel, I noticed a stronger smell of "fish and chips" and at times it seemed to be billowing clouds of white smoke, especially at idle. However when I filled up again on standard diesel, the smokey exhaust returned to virtually nothing again.

Long story short, after many trials and tests and now running the small tank on bio and the other on standard diesel and toggling between, it is definitely billowing white smoke whenever I switch to the bio and when I change back it clears up.

I thought it was meant to be the other way round??

Peter
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Reply By: _gmd_pps - Wednesday, Oct 25, 2006 at 21:57

Wednesday, Oct 25, 2006 at 21:57
first of all .. shame on Gull by trying to fob us with 4c less ..
at any other station I get 4c anyway ... for non bio diesel ...

The gull diesel should not smell like fish&chips ..
would not surprise me if a station owner makes a bit on the side
and mixes bio from other sources ... get a sample and have it tested ...

I stay clear of Gull diesel anyway, can't be bothered at no saving whatsoever ..

good luck
gmd

AnswerID: 200959

Follow Up By: Tim HJ61 (WA) - Thursday, Oct 26, 2006 at 00:42

Thursday, Oct 26, 2006 at 00:42
Dunno why I'm responding to such a waste of a post. All I can say that's slightly constructive is that at least with you not using Gull, it'll leave more for the rest of the population with open minds about new things.

Gull's doing an excellent job providing 80/20 BioD to Aust standards. Not that I use it much, but it is my third fuel of choice following home brew biod, vege, then Gull then standard Dino.

Tim
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Follow Up By: Member - Karl - Thursday, Oct 26, 2006 at 09:51

Thursday, Oct 26, 2006 at 09:51
I agree with you Tim.
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Follow Up By: techo2oz - Thursday, Oct 26, 2006 at 20:11

Thursday, Oct 26, 2006 at 20:11
Unfortunately for the moment our choice in suppliers in our area for Bio Diesel is limited.

I have heard a lot of good to great reviews and very few negative comments so thought I'd "give it a go".

While the saving is a little incentive, the greater benefit I percieved from my reading of previous posts here and in other forums was that it would offer reduced emissions and ultimately could be better for the engine with smoother running and less internal wear and tear because the oil generally remains cleaner.

Hence my post, the results I have gotten to date are very confusing.
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Reply By: ross - Thursday, Oct 26, 2006 at 09:22

Thursday, Oct 26, 2006 at 09:22
Im with Tim .I ran 2 tanks of Gull boidiesel through my HZJ75.
,I think you would need to dyno and test the the exhaust gases to say for sure it was cleaner and more economical,but it was cheaper.

Peter I would get a sample and send it off. White smoke from a diesel means something is causing the combustion process to be cooler than normal
AnswerID: 200988

Reply By: Member - Karl - Thursday, Oct 26, 2006 at 09:56

Thursday, Oct 26, 2006 at 09:56
Peter,

One thing with Bio is that it will clean out your fuel lines etc and you will notice that your filters may get blocked; however, once the gunk is gone you shouldn't have many problems. I use a CAV filter and it's not an issue ($5 for a filter cartridge).

Sometimes you will get the smell of fish and chips but that is because they are recycling - just makes everyone behind you hungry.

If it's blowing white smoke there could be something else rather than the bio.

Karl
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Follow Up By: techo2oz - Thursday, Oct 26, 2006 at 20:20

Thursday, Oct 26, 2006 at 20:20
Thanks Karl,
I suspect it might have something to do with either the filter or the injector pump. I will look into the CAV filter and see what is involved in conversion.

Personally I don't mind the smell, but it is still a worry with the white smoke, yet when on Dino diesel it goes back to virtually nothing. Worst case scenario I'll change the filter and see if it makes a difference, otherwise perhaps a trip to find a diesel Mecahanic who knows about such things.

Cheers
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Reply By: Tim HJ61 (WA) - Thursday, Oct 26, 2006 at 10:17

Thursday, Oct 26, 2006 at 10:17
Hi Peter,

Gull produces an 80 Dino to 20 Biod blend. I would also be surprised if I noticed billowing white smoke on one fuel and not another and agree it needs checking somehow.

An email to Gull, address is on their website, might be an easy first move. I understand that Gull are finding they need to turn over their BioD tanks to ensure the blend stays blended. I find this surprising and it might be an urban myth, but even if it is true, B100 shouldn't produce the 'billowing' clouds you describe. I run a cocktail of fuels and blend BioD and Vege, but am running a bit of Dino in there too after a country trip. No idea what ratios of what are in there at the moment, but I try to aim for around 50/50 BioD and Vege which seems to be a good mix. I certainly haven't noticed any separation in the drums of fuel I keep.

I'm not surprised you noticed a different odour from the exhaust - that's a benefit of BioD - geez I hate the smell of Dino both as a liquid and in the exhaust. White smoke instead of black is also a sign of BioD, but not the billowing clouds you mention. Australian Renewable Fuels are building a BioD plant in Picton and it's close to production. They're using animal tallow as their feedstock and this has a higher energy content than Dino, unlike oilseed feedstock which has a teensy bit less. They were going to sell it at a premium price to Dino as it is superior fuel in many ways, but now Gull are selling at a discount, I'm not sure what their pricing plans are. Anyway, I digress.

B100 can have a higher gelling point in winter than dino, and there is the well known cleansing properties, but I tend to agree with Gull's statements that none of these are issues when the blend is 80/20.

I think an email to Gull would give them the chance to respond and if there is a problem, address it for the benefit of all their other customers too. They are 'out there' amongst fuel suppliers in the nation and deserve support for their initiative.

Let us know how you go.

Tim
AnswerID: 200997

Follow Up By: techo2oz - Thursday, Oct 26, 2006 at 20:45

Thursday, Oct 26, 2006 at 20:45
Thanks for the feedback Tim,
at first I thought I was imagining things with the amount of smoke on my recent camping trip then I thought perhaps that because it was a cooler morning it might simply be steam, however as the day warmed up and I was doing a couple of runs to and from the campsite to the water towing a boat, I noticed that especially at idle, it was rolling out in clouds.

When filling the tank I had noticed the bright yellow of the fuel. I attribute this to the fact it probably contains canola or it's derivatives. naturally there will still be some of the blend in the main tank yet now when running off it (It has been completely topped up with Dino) it is fine now, yet everytime I switch over to the sub tank it seems like it has taken up chain smoking.

As indicated earlier, the first stage I guess is to change the filter. I look into the CAV setup or at the very least just change it with a like one to the one in use now. Failing that I'll contact Gull and perhaps seek out a competent diesel mechanic and see what they say.

It's just that form everything I have read the results I have contradict most others experiences.

Cheers

Peter
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Follow Up By: Member - Andrew W (SA) - Friday, Oct 27, 2006 at 21:40

Friday, Oct 27, 2006 at 21:40
this might be some sort of over-fueling - perhaps the fuel return line to your sub tank is blocked?
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Reply By: Member - DOZER- Thursday, Oct 26, 2006 at 10:37

Thursday, Oct 26, 2006 at 10:37
Hi
For you, i wouldstick to std diesel....there is something wrong with your fuel system that the bio upsets....maybe the pump needs reconditioning....because the bio is thicker, results in less pressure....dont know.just thinking aloud...but what is good is you can control one aspect of running diesel...and that is run bio every second small tank to keep the seals swelled in the pump...and no leaks.....if in the future, you need the pump done, you can try a complete conversion.......the cheapest fuel is notalways the cheapest in the long run.....you will get the bio cleaning out all the sludge, so if you havnt already, get a cav filter conversion....
Andrew hdftvx
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Follow Up By: techo2oz - Thursday, Oct 26, 2006 at 20:50

Thursday, Oct 26, 2006 at 20:50
Thanks Andrew.

I have recently redone the rings, injectors and the entire bottem end, but bulked at the cost of the pump. As mentioned earlier, I'll be looking into the CAV set up but in the meantime just change the filter to see if it has any impact.

Cheers

Peter
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Reply By: Michael ( Moss Vale NSW) - Thursday, Oct 26, 2006 at 16:48

Thursday, Oct 26, 2006 at 16:48
I really wonder if its is worth the few cents a litre saving until there is some kind of standard set in stone. Compared to servicing, accessories, tyres, camp gear and the other costs involved in holidaying, not to mention the huge costs of diesel vehicles, the small savings that come with purchasing bio diesel, seem not to be worth the hassle and potential damage it could cause.. Michael
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Follow Up By: Member - Andrew W (SA) - Thursday, Oct 26, 2006 at 18:22

Thursday, Oct 26, 2006 at 18:22
The Australian standard for Biodiesel is set in stone (until the government changes it) and is extremely onerous.

Further, to sell Biodiesel it is mandatory to have your fuel tested to spec, and without that testing, the producer will not receive the Biofuel rebate.

This is not about savings particularly - although often it is a welcome side-effect.

It is about better emissions - almost zero, and potentially zero net CO2 emissions in the production.

Potential damage is a furfy ... unless you have a very old vehicle.
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Follow Up By: Michael ( Moss Vale NSW) - Thursday, Oct 26, 2006 at 18:58

Thursday, Oct 26, 2006 at 18:58
Andrew, As for potential damage, I was referring to the huge difference in quality as mentioned above, you never seem to know what you are pouring into your 60 grand vehicle. To me, thats potential damage. I wouldnt risk it even though i realise the need to keep a healthier environment. When they get it right, i'll give it a go. It appears by some of the previous posts over the months, the regulations are not working. Michael
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Follow Up By: techo2oz - Thursday, Oct 26, 2006 at 21:02

Thursday, Oct 26, 2006 at 21:02
G'day Michael and Andrew,
there are a few reasons for me wnating to move to BIO. While the reuced cost is a bonus, I agree the potential to reducing emissions is the biggest issue. Diesel engines have a long history of being referred to as being "dirty" so if we all can do our little bit, then hopefully we will help our youngsters have as clean an environment as what we have been blessed with.

The other aspect I am looking at is that potentially the day will come (if we believe the soothsayers) that Dino fuel will dry up. I would naturally like to be prepared now rather than leave till the last minute only to find that I have all these problems. Yeah I know, it might be another 10 years away, but still...

Of course you can pick up bad fuel anywhere, (as others in the forum have reported) but I would expect that would have a noticeable affect on either performance or economy or even both. In this instance, by my calculations, economy was slightly improved, and performance seemed around the same. The only noticeable things are the smoke and smell.

I think it is time to get scientific.

Thanks again for your feedback

Cheers

Peter
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Reply By: Mr Fawlty - Thursday, Oct 26, 2006 at 17:19

Thursday, Oct 26, 2006 at 17:19
I have had some sucess with Bio 60/40 blend to Australian standards ( thats wot it had on the pump) bright yellow colour... Ok Jackeroo 2002 TD towing my gin palace I get around 6km/ltr on std Diesel but on this Biomix I picked up @ Volume Plus at Pambula I get around 7km/ltr....Now that is a staggering improvement & I am checking the math just to make sure that it's not a placebo effect....
I was very impressed, less engine noise and seemed to have more power, I noticed a reduction in smoke as well.

Some "Bio" I picked up @ Nowra has ethanol in it & that mix did nothing to my notice.
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Follow Up By: Member - Andrew W (SA) - Thursday, Oct 26, 2006 at 18:27

Thursday, Oct 26, 2006 at 18:27
Interesting - I don't know what to attribute the efficiency to, although it is possible that it is a high energy BioDiesel source - most of them are almost identical to Dino Diesel.

Now, about the "Bio" at Nowra - who told you it had ethanol in it - that is a very strange thing, and disturbs me. I doubt this is the case.

The colour of the fuel, by the way, is quite variable and dependent on the source of the oils it is made from.

The fish and chip smell that was mentioned by someone else is quite common, and is not necessarily an indication that the Biodiesel is produced from Waste Vegetable Oil - any Biodiesel produced from vegie oil (canola, rapeseed, etc. etc.) is going to smell like that.
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Follow Up By: Mr Fawlty - Friday, Oct 27, 2006 at 15:09

Friday, Oct 27, 2006 at 15:09
I purchased the bio with ethanol @ the Shoalhaven ethanol outlet in kinghorn st...
I would not have thought it would mix but then many of the Diesel additives are ethanol based....
I have had a look to try & find info on the calorific value of veg oils & don't seem to be able to get much....
Heard about a chap in Canberra who is going to market home Bio plants that can provide around 100 litres of Bio a day. That sounds interesting, a group could get together & start making their own fuel. The Oil companies, will via their surrogates the Fed Govt, move to stop this I recon....
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Reply By: Dirty Smitty - Thursday, Oct 26, 2006 at 18:39

Thursday, Oct 26, 2006 at 18:39
There maybe water contaminate in the fuel? I would have to agree with the fitting of said CAV filter system especially if you are going to run BIO on a regular basis. Keep me posted on your progress with this as I am interested as to what problems you may have in the future.

Regards,
Smitty (aka grayvox 105)
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Reply By: Footloose - Thursday, Oct 26, 2006 at 21:05

Thursday, Oct 26, 2006 at 21:05
I used Gull bio blend when in WA a couple of months ago. I was very happy with all aspects. I'd buy the same stuff all the time if I could guarentee that it would work as well.
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Reply By: Tim HJ61 (WA) - Thursday, Oct 26, 2006 at 21:36

Thursday, Oct 26, 2006 at 21:36
Peter,

As I said above, I'd be contacting Gull with the info about where and when you bought their fuel. They are the sellers and in my contact with them, are likely to show an interest in your story and help you explain it - if they can. At the least, it will help add to the body of knowledge.

I don't think changing your CAV filter will make any difference, unless you have separate filters for each tank.

I can forward your comments to the WA Renewable Fuels Association who are the WA experts in this stuff. I suggest it would be difficult to find a mechanic that was across BioD issues, unless on personal recommendation from a knowledgeable source. There are also many BioD sites and forums on the net, with far greater expertise on this issue.

I know I get more smoke when my vege oil blend is too high, but this is not BioD, and BioD should not create heaps of smoke, especially if Dino is not creating smoke. Normally any smoke just changes from black to white, and often becomes invisible.

Tim
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Follow Up By: techo2oz - Friday, Oct 27, 2006 at 05:36

Friday, Oct 27, 2006 at 05:36
Tim,
I have been trawling the web for some time and this is why I was reasonably comfortable to try using it. The greater majority of experiences have all been positive and perceived benefits were all in the positive as well.

Hence when I get these symptoms I am a mix of surprised, confused and disappointed. This is why I chose to share my experience with the forum because I recognise that quite a few participants here travel far more KM's than I would and may have experienced or know someone who has experienced similar.

As you allude to, finding good diesel mechanics is one thing, but then finding one who is also knowledgeable in the affects of using the "relatively" newer renewable fuels is rarer, especially in the regional area I am in.

I would be very grateful (as long as it is no trouble) for you to forward my comments to this agency. Perhaps they may be able to shed some light on the problem before I have to start forking out hard earned money hand over fist until I find someone who actually knows about such things.

Cheers
Peter
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Follow Up By: Tim HJ61 (WA) - Friday, Oct 27, 2006 at 10:12

Friday, Oct 27, 2006 at 10:12
Hi Peter,

The WARFA is an association of back yard BioD makers, vege oil users and others interested in such things. We roll up to meetings in all sorts of diesel vehicles, often towing trailers full of drums of oil, often looking like a fairly rag tag bunch of individuals. However, amongst the group there is a great deal of pratical and technical experience in BioD and vege oil in diesels.
I WILL ask the group, but only if you are going to contact Gull. Their website is www.gull.biz/ and the email address is admin@gull.biz

There is, it would seem to me, no need to
start forking out hard earned money hand over fist until I find someone who actually knows about such things
unless you contact the supplier and given them a chance to try to explain. If they cannot explain it, they might be able to check the tanks that you filled from to ensure all is okay - although given the time lag now I'd imagine they'd have done this already as others could also have had problems if the issue was the fuel.

Whilst acknowledging the intelligent opinions that can mostly be had in this forum, it is not the only place you need to be asking the questions. Sydney Biodiesel forum might be useful given their larger user base, or try some of the international, US and European BioD and vege sites.

Site Link
Site Link
www.ravenfamily.org/andyg/vegoil.htm

should get you started.

All the best
Tim
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Follow Up By: techo2oz - Friday, Oct 27, 2006 at 20:08

Friday, Oct 27, 2006 at 20:08
While I am not holding my breath, I have sent an email to Gull. I gave a full description of what has transpired and hopefully it is not coming across as me blaming them.

I certainly am in no position at this point to point fingers. All I am trying to do is seek answers. If they can assist well and good. If not it is onto the next level.

I will post back any progress I have and any information I uncover.

Cheers

Peter
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Follow Up By: Member - Geordie C (WA) - Saturday, Oct 28, 2006 at 00:37

Saturday, Oct 28, 2006 at 00:37
Hi Tim,
when do you have meetings of WARFA I am interested to find out more.
Geordie
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Follow Up By: Tim HJ61 (WA) - Saturday, Oct 28, 2006 at 11:11

Saturday, Oct 28, 2006 at 11:11
Geordie,

The link to the Assn website is:
www.shortcircuit.com.au/warfa/warfa.htm
and the brochure is:
http://www.shortcircuit.com.au/warfa/WARFAbrochure.pdf

The meetings are usually on the first sunday of the month in Vic Park around 2pm
This months meeting is the AGM to be held in Bedfordale, and won't be a normal meeting.
Contact details are in the brochure.

Some of the members make their own BioD, some use vege oil, some people come along just because they are interested. There is usually feedback from conferences etc., new initiatives, then a bunch of chewing the fat as we call it and heads under bonnets checking things out.

Tim
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Follow Up By: Member - Geordie C (WA) - Monday, Oct 30, 2006 at 11:35

Monday, Oct 30, 2006 at 11:35
Tim,
thanks for the info. I will make an effort to get along to a meeting and find out more.

Cheers
Geordie
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Reply By: oldmagpie2 - Thursday, Oct 26, 2006 at 22:45

Thursday, Oct 26, 2006 at 22:45
when you say you tow a boat, are you puting it in the water every day , & if so how far does the water level come when your at the ramp , just a thought you might have a leak?cheers
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Follow Up By: techo2oz - Friday, Oct 27, 2006 at 05:24

Friday, Oct 27, 2006 at 05:24
Fortunately I made the trailer with an extra long draw bar so the rear of the vehicle is way out of the water. This helps keep my footsies dry while I launch, but then also means there is no chance of getting water anywahere near the car.

A good thought though.
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