Biodiesel oil changes
Submitted: Wednesday, Apr 19, 2006 at 14:58
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Barnesy
As biodiesel clears the engine of deposits resulting in cleaner oil does any body know if that mean oil changes can be spaced out?
I am currently changing the oil and filters on my 4.2 GQ with 230 000km on the clock every 5000km, what could i expect my intervals to be on biodiesel 20% and 100%?
An oil change costs around the same as a tank of fuel so if i can extend those out to something like 10 000km money saved would be substantial.
Also are the fuel lines on the December 1991 build TD42 likely to be corroded by the biodiesel over time?
Thanks
Barnesy
Reply By: Mr Fawlty - Wednesday, Apr 19, 2006 at 16:43
Wednesday, Apr 19, 2006 at 16:43
Strewth don't start me on oil prices... My Jack has to use a synthetic oil as that seems to be the only oil I can find with a 5 weight ie 5w-30.... Just bought a new 20 litre drum of the stuff at $190... enough for not quite 3 changes...
Repco had a 25% off sale over
Easter & I thought there was plenty of Oil in my drum, imagine my horror when the Castrol man hit me with that price. I've tried it on semi synthetic 10w-40 and it works
well untill the temperature drops and then it just won't start....Also I have to buy genuine filters but they are reasonable at $26 trade but if the dealer does a simple oil change I have no change from $350....I think the last time I had a dealer do this I was hit $96 for the filter...The change interval is 10,000 km though so I guess I just have to put up with it, great tow vehicle otherwise...
Anyway back on topic... Bio diesel has these cleansing properties which I would imagine to be a good thing does this mean that one may not need to use any anti algie additives?
I wonder if one of those fitchy things would improve things???
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Follow Up By: Barnesy - Wednesday, Apr 19, 2006 at 18:08
Wednesday, Apr 19, 2006 at 18:08
Have only begun researching biodiesel and as it is a natural product, also contains oxygen then algae can grow in the tanks consuming the fuel. It has the cleansing properties as it's a solvent. If I'm wrong then please correct me.
I really want to know about the oil though. My GQ is due for its 5000km change, only 4 weeks after the last one!
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Follow Up By: Michael ( Moss Vale NSW) - Wednesday, Apr 19, 2006 at 21:36
Wednesday, Apr 19, 2006 at 21:36
Like Dozer said, Use a bypass filter and just change the oil every 30, 40,000km, change the filter inside it for about $10 and top up the oil.. especially if you are using synthetic oil.. Michael
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Follow Up By: Member - Royce- Wednesday, Apr 19, 2006 at 23:30
Wednesday, Apr 19, 2006 at 23:30
Diesel made from old forests.... oil.... is probably just as 'natural'. A far as I understand algae can grow in either given the right environment. Not sure why there would be more oxygen in biodiesel to mined diesel.... take your word for it.
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Follow Up By: Barnesy - Thursday, Apr 20, 2006 at 01:31
Thursday, Apr 20, 2006 at 01:31
Royce, have read that biodiesel has a higher oxygen content than straight petroleum diesel and that helps it combust cleaner and more efficiently. Haven't found out why the content is higher as yet but oxygen is highly flammable of course but otherwise safe.
The non-petroleum components of biodiesel are far less toxic, about the same as table salt, and biodegrade at the same rate as sugar.
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Follow Up By: Barnesy - Thursday, Apr 20, 2006 at 01:40
Thursday, Apr 20, 2006 at 01:40
due to the higher oxygen content this also allows microbes to live in the fuel and feed off of the oxygen.
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Reply By: cokeaddict - Wednesday, Apr 19, 2006 at 19:21
Wednesday, Apr 19, 2006 at 19:21
Barnsey,
I have been following the biodiesel
forum for a while now, I have used 3 tanks of 100 so far in my GQ.
Mine is a 1994 model. So far, fuel filter is still spotless but i carry a spare in car just incase it clogs up.
As for your fuel lines, in theory, you should replace them as most manufacturers started using different hose compositions around 1994. So i would say yours will eventually stuff up. So just change them and save yourself the hassle of one breaking down while your driving.
Some of the administrators in the biodiesel site have been using biodiesel for years, mostly
home brewed back then but now most of them buy it in bulk lots between them and share it around depending on how much each member orders. Some of them have also increased their oil changes from 5000 to 10,000 kms without any problems at all. Infact, a few have stated that their engine oil is much cleaner now that they run biodiesel 100.
I can only tell you what i have expierenced with
mine, I changed my engine oil 2 weeks ago, It was my first oil change since using 100 biodiesel. The new oil has done approximately 800 kms to date and it is still showing a gold colour on my dipstick. I mention this because as you
well know, most diesels would show black oil at the dipstick after a few kms. So from my expierence so far, its all good.
And NO..i wont be changing oil every 10,000 kms just yet. I want to use a few more tanks before i decide to go that path, but im just and lod fart and i like to take precautions, after all...tis GQ is my pride and joy and i intend on keeping it for a long time yet.
I hope this helps mate
Ange
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