bio-diesel

research it for yourself rather than 3rd hand urban myths.
Many fuel injection workshops even seem to have little idea of the stuff.
If it was that bad there would be broken down cars/trucks strewn for miles around Mundrabila SAFF roadhouse on the Nullabor for a start.

fisho64 you will find kNf asked how to make bio diesel, Big difference in home made & comercial diesel. Have a neighbour who makes his own bio diesel which works ok untill cold weather goes thick in fuel line. When this hapens he can barely drive the vehicle.

and you will find that he asked if it would run on it first, and you will also find my followup is to Kenny, who said he had heard "a lot of bad reports".
You will also find that normal diesel also does this at varying temps and waxes up.
Adding a small amount of kerosine raises the cloud point of bio diesel and mineral diesel.

This post has been read by the moderation team and has been moderated due to a breach of The Moderation Complaints Rule .

Forum Moderation Team

Ozboc-take the last bit off your post and repost it, it is relevant and well thought out information you have provided.
I imagine that was the bit causing the prob!

fish -- Nope - if they dont want my whole post - then its nothing .... if my information is not valuable enough --- then so be it .. Info would have found its way via email --- thats what is important

no probs, thanks anyway, yeah I received it all

cheers!

there is a drop , but thats because the motor is not tuned to bio -- as for cost effective --- costing me 10 c a l to make -- much better than $1.20 + pl

An Australian standard was legislated about 2 years ago, and excise is required to be paid on all production for on-road use regardless of whether it's for personal use or not.

Fuel economy with straight Bio (100%) will generally be 5 - 10% worse than diesel, and logically a 10% mix will be less than 1% lower economy.

Biodiesel provides significant additional lubricity.

It is generally considered that the benefit of a 5 -10 % mix of Bio providing additional lubrication for the injection system and engine outweighs the slight economy dis-advantage of such a mix.

I used to make my own and have on occassions (as a trial) run my HZJ landcruiser and Mitsubishi canter on 100 % Bio. (It's amazing to be able to take a deep breath straight from the exhaust and not have coughing or watery eyes or any other other hay-fever-like symptoms.

As stated above it is necessary to instal an addition fuel filter as the bio (even in low doses) will remove scale etc from fuel tank & lines of an older vehicle.

Peter

Hi Peter,

When doing some dyno tests on commercially available bio I believe the standards for it were of a much lower than that of mineral oil. I'll happily be corrected as I only did a quick scan. My point was quality not so much economy or lubricity which I agree with you. I'm not so sure on the advantages with modern high pressure diesels. In fact would be very careful as injectors etc are so expensive. I rang a few pump/injector places when starting the tests and they said, bio fuel induced dramas certainly helped their business. Now was that commercially available bio or poor quality home cocktails.

I'm guessing you didn't really take a deep breath from the exhaust pipe, even for bio. The transesterification process plus added highly toxic chemicals are pretty nasty compounds. Plus at high temp there are some nasty bi-products produced even for bio. Might not smell like mineral diesel but doesn't mean the by products are clean and non harmful. I recall many years ago a demo at a shopping centre. Some guy was selling natural insecticide and said it's harmless. In fact sprayed his harm and took a lick. Wonder if he's still alive, poison is poison regardless if it's natural or synthesised.

Your right with filters first few are quick changes and of course all seals, o-rings and hoses need to be changed.

Don't take this as knocking bio it's just not as clear cut as many (not you) seem to think. Again unless the dollar to risk ratio was pretty good I'd wonder why people would do it. Certainly those with access to feed stock would see a huge benefit.

from what I understand the problem with o-rings/seals etc is only vehicles older than around 93 when I understand all were to be viton or equivalent which is impervious.

Forgot to add vehicle has now 200 thou on clock.