Vegetable oil/Biodiesel/Rapeseed oil

craichoe

Anyone have any say on this ?

I have a 1.9TDI Skoda Octavia 00 (Not Pumpe Duse), can i run this on a 50/50 mix of Diesel and Vegetable oil ?

Anyone else done this ?

Theres a guy working with me, he's been running on a 70/30 Vege/Diesel mix for the past 2 years on his 1995 2.0Litre Diesel Fiat Uno.

astraboy

If you want to run your car on rapeseed oil or biodiesel, you need to get a simple conversion done to your car. Basically biofuel needs to be heated in your fuel tank before its sent to the injectors or through your fuel pump. I'm not sure why, maybe the consistency of the fuel is not suitable at regular temps. They place what is like an element in your tank to get the biofuel to temperture. There is at least 1 company in Ireland doing this conversion. I'm not sure if there is a gov grant for the conversion, I doubt it. I'm sure someone on here can point you in the right direction.

Terrontress

Yeah, it is the viscosity. The veg oil is too gloopy going in at normal temperatures. Needs to be hot. You can buy a box that will heat and filter which means you can get leftover fat from the chip shops and put it through. The filter will take out all the bits of chips and salt from the oil and it heats it as well.

Need to have a supply of chip fat though.

Tony Danza

I wouldn't put in 50%, but 10-20% won't do any harm.

http://www.ravenfamily.org/andyg/vegoil.htm

Dilbert75

There's at least one boardsie running an Octavia on biodiesel - can't think of his name though. I think www.rapoleum.ie is one option for PPO (pure plant oil)

overdriver

There's an Australian forum on this topic. I would experiment with blends until I'd gone as far as the car is comfortable with, starting with 70 -30 diesel / vege.. They use unleaded petrol to thin the oil, instead of diesel.

doubledecker

HI, I'm no expert on the subject.. but have just converted my double decker bus here in Cork,,, As your vehicle is a direct injection, it is recomended to install a two tank system to get the injector pump up to temp. before veg. oil is used, to help the combustion of the oil.
But I read that the main factor with using a blend is the injection pump itself. You need to look at the pump and see if its a bosch. A bosch is great news.. but a lucas is bad news.. a lucas pump can't handle any oil at all without conversion. If it is a bosch pump your're in luck but to run a high % of veg. a two tank conversion would be needed with a direct injection engine. I've read no more than 10-15%.
A simple heat exchanger using the coolant fluid, can help a higher mix, also a heated filter... but your pump could be the deciding factor..

check out this uk forum, search for your vehicle.. plenty of great info..
http://www.vegetableoildiesel.co.uk/forum/

this thread explains the risks of using veg. oil without conversion in a direct injection engine..
http://www.vegetableoildiesel.co.uk/forum/viewthread.php?tid=1553#pid10665

for indentifing your pump..
http://www.doctordiesel.co.uk/

hope this helps..
Bryce
www.doubledecker.ie

CJhaughey

The conversion is simple but beware just mixing PPO with diesel, PPO/biodiesel is quite a lot harder on rubber components than straight dinodiesel and many rubber pipes etc will need to be replaced with ones that don't breakdown from the effects of PPO/biodiesel.

woop

hey theres a company in kilpeddar in wicklow doing the conversion, you can buy the kits yourself and do it, heres the link for the company Im talking about

http://www.ecomotion.ie/

Id love to try it actually,done quite a bit of looking up on it and the process of making doesnt seem too complicated, well after a bit of practice Id say youd get it right, I think that company also sells the oil too, and I heard something about a fairly big plant thats gonna be set up somewhere in the south-east but it was gonna be a long way off

any good look with it, and post back up if you end up getting it done

StephenC_IRL

ii heard something about paint thinners works out the viscocity issue ?

CJhaughey

StephenC_IRL wrote:

ii heard something about paint thinners works out the viscocity issue ?

I don't think so and thinners is probably even more damaging to seals and rubber parts than bio diesel/ppo.
One more thing to beware of is the possibility of polymerisation of the lubricating oil, this is where the ppo cn cause the lube oil to become very sticky and cause premature failure, the solution is to use quality full synthetic oil OR the vegetable based stuff which is almost impossible to obtain here and even more expensive than full synthetic.