Topic: Biofuel (Read 3340 times)

freelanderpx54 · « **on:** May 29, 2007, 00:22:36 »

Can a TD5 be run on SVO? I was thinking of running a 50:50 mix of SVO and Diesel. Or is it a case of modifying the fuel system?

beast5680 · « **Reply #1 on:** May 29, 2007, 11:19:04 »

i would do some research first as if i remember its not recommended i dont think the system is compatible

rollazuki · « **Reply #2 on:** May 29, 2007, 15:36:03 »

I wouldnt, direct inj engines(I believe the td5 is direct aint it?) run too high a pressure for the veg oil and it seperates, and you bung everything up.
DONT run it Id say unless you can afford to be the MUD CLUB guinnea pig for the TD5 motor!

:?

Wireless · « **Reply #3 on:** May 29, 2007, 16:19:50 »

I'd read this if I were you;

http://www.elsbett.com/gb/about-us/introduction.html

BigA · « **Reply #4 on:** May 29, 2007, 16:29:24 »

I have been looking into running my 300TDI on a mix without any alteration's, and from what i have read, and as mentioned here, this is not a good idea on direct injection engines ??

This does confuse me however, as its OK to go the whole hog and and run on pure oil (no mix) with the pre heating etc and separate tank ??

How can the direct injection be an issue with mixed (thinner) oil but not with non mixed (pre heated so thinner again) oil ??

I dunno, i am just confused now, sorry to take a bit off topic :oops:

muddyjames · « **Reply #5 on:** May 29, 2007, 17:36:32 »

my mate ran his 200tdi on veg/diesel mix for a while and now on the pre heat malarky and had no probs. im looking into converting mine soon due to gordon brown raising the pump prices again!

Dr.Ed · « **Reply #6 on:** May 30, 2007, 09:59:47 »

I'm the mate!

Td5's have (i believe) a high pressure lift pump in the fuel tank that feeds the common rail directly, conversion of these engines is meant to be possible (i know smartveg have done a few) but requires a second lift pump in the 2nd tank and some fooling of the ECU as it tends to throw its toys out of the pram if the fuel pressure is off.

300(& 200) tdi's are simpler - the lift pump is on the engine, injection pump is a bosch and can handle veg oil with no problem. The only problem is that as they are direct injection engines if the oil is not atomised correctly by the injectors (say if its cold) then it wil get past the piston rings and contaminate the sump oil which can lead to polymerisation.

oh and it looks like HM customs won't be after their 28p a litre soon either!

http://www.hmrc.gov.uk/briefs/excise-duty/brief3707.htm

hope this helps!

muddyjames · « **Reply #7 on:** May 30, 2007, 16:08:36 »

your link doesnt work Ed

I need to talk to you asap about all this biofuel as me thinks I need to get a shifty on to sort my disco out. I cant even find the fuel tanks I want on Ebay any more

Wolfie · « **Reply #8 on:** May 30, 2007, 16:18:54 »

Quote from: "muddyjames"

your link doesnt work Ed

Fixed

muddyjames · « **Reply #9 on:** May 30, 2007, 16:29:45 »

Cheers wolfie.

so does this mean if I were to buy new stuff from say Makro that I wouldnt have to pay tax on it to be fuel? Also if I were to say get some oil from a pub for free and filter it myself I wouldnt need to pay duty on it?

Right. Off to the pub :lol: This seems like an ace plan to solve my poor mpg problem :D

Dr.Ed · « **Reply #10 on:** May 30, 2007, 17:08:11 »

That's the idea - believe it was costing HMCE too much to process all the Ã‚Â£5 cheques from all the people making a few litres of biodiesel/veg oil a month. The 2500 litre limit HAS NOT come in yet (some point in the summer) until then you need to carry on paying your 28p a litre. You'll still need to register with HMCE so you can prove where your fuel came from when the police pull you over.

Got to watch the makro veg oil - the big drums actually cost more per litre than sainsburys!

muddyjames · « **Reply #11 on:** May 30, 2007, 17:14:54 »

But I could install all the kit now and then as soon as the goverment give the go ahead I can sling veg oil in the big tank and diesel in the small one

Shame I cant buy nicely filtered oil off a nice person for say 5p a litre

:lol:

It does seem to be the way forward though in motoring. Gets around the high insurance prices and road tax! I might be able to afford a few other luxuries like new parts for the disco then :lol:

NEILH · « **Reply #12 on:** May 30, 2007, 18:32:00 »

hi , just come across this forum ,i have a 300 tdi can anyone tell me what i would have to do /fit/change to run on veg oil . is there any power lose as a result?
thanks neil

muddyjames · « **Reply #13 on:** May 30, 2007, 18:55:12 »

I have a 300tdi.

As far as I know you can add filtered old vegoil or new veg oil direct into your tank as long as you dont put more than 30% oil in the diesel tank ( I am sure Ed will correct me here) If you put too much in it solidifies in the engine and makes the engine sieze up over night.

To run on 100% veg oil you need to put in a small tank for diesel (a 5gallon drum in the boot usualy) and a heat exchanger in the engine bay to warm the oil up. So you start the engine on diesel until the oil is warm then switch over to oil and drive until your heart is content and then at the end of the journey run the engine for 5 mins on diesel again to clean the system ready to start the next journey on diesel.

Xtremeteam · « **Reply #14 on:** May 30, 2007, 21:49:38 »

200 TDi 90 on 99-100% VO & apart from being a bit smokey & lumpy when cold its fine

manchap · « **Reply #15 on:** June 02, 2007, 10:38:20 »

Hi i run my 300tdi and the wifes car on cooking oil no mods,
they run very well just need to change fuel filter bit more often and when i have to go back to normal diesel they both run lumpy

cheers

keefie · « **Reply #16 on:** June 21, 2007, 14:41:52 »

So what you are saying is my 300tdi "should" be ok with pure veg oil filtered. If I distill my own biodeisel I can use it as a full tank without an extra normal diesel filled tank?

BigA · « **Reply #17 on:** June 21, 2007, 14:58:57 »

Have a read of This i found it a very useful explanation of how and why mixed oil can screw up a 300 TDI ??

Hope it helps.

muddyjames · « **Reply #18 on:** June 21, 2007, 18:57:09 »

hmm yeah. Although VERY long it is an interesting read.

The firs thalf I got lost on but it all came clear later on.

The long and short of it is running on diesel /VO mix means coking up and could lead to the sump oil / VO mix combusting and running away by itself.

Running on VO only (heating engine with diesel though) is fine as there isnt a difference in combusting temperatures as you get with mixing Diesel and VO.

Have I worked this out right?

Thrasher · « **Reply #19 on:** June 21, 2007, 19:08:43 »

Just get a V8 and run it on bio-ethanol :-)

minty · « **Reply #20 on:** June 21, 2007, 19:26:37 »

you watch the cost in fuel come down :D and the price of fish & chips sky rocket

BigA · « **Reply #21 on:** June 21, 2007, 20:28:25 »

Quote from: "muddyjames"

hmm yeah. Although VERY long it is an interesting read.

The firs thalf I got lost on but it all came clear later on.

The long and short of it is running on diesel /VO mix means coking up and could lead to the sump oil / VO mix combusting and running away by itself.

Running on VO only (heating engine with diesel though) is fine as there isnt a difference in combusting temperatures as you get with mixing Diesel and VO.

Have I worked this out right?

errrr..... thats about what i made of it.... i think :?

i must admit, it put me off mixing, as i tend to do more day to day short trips with a cold engine

BigA · « **Reply #22 on:** June 21, 2007, 20:32:43 »

Quote from: "Thrasher"

Just get a V8 and run it on bio-ethanol :-)

Are you offering a swap :lol:

muddyjames · « **Reply #23 on:** June 21, 2007, 20:35:28 »

Quote from: "BigA"

Quote from: "muddyjames"
hmm yeah. Although VERY long it is an interesting read.

The firs thalf I got lost on but it all came clear later on.

The long and short of it is running on diesel /VO mix means coking up and could lead to the sump oil / VO mix combusting and running away by itself.

Running on VO only (heating engine with diesel though) is fine as there isnt a difference in combusting temperatures as you get with mixing Diesel and VO.

Have I worked this out right?

errrr..... thats about what i made of it.... i think :?

i must admit, it put me off mixing, as i tend to do more day to day short trips with a cold engine

Ditto. I have gone off mixing as well after reading that. I tend to either do very long trips with a trailer in tow or a short trip to work to re fuel or give the engine a run after being sat for a week or 2!

the ebay hunt for a veg oil kit continues!!

freeagent · « **Reply #24 on:** June 24, 2007, 20:34:49 »

I've been mixing about 30% SVO into my diesel for around 4 years now, in my old 300Tdi 110, then in my current 300Tdi disco..

i've never had any problems like that, the only problem i had was the fuel injector leak-off hoses perished, which cost about Â£2 and took 5 mins to replace.
i'm running on it now, and will continue to do it.. you don't even need to pay tax on it after next weekend.

there is a lot of bulls**t and scaremongering on the web about SVO, mostly posted by people who have never tried it, or went to far and hashed it up...

muddymart · « **Reply #25 on:** June 24, 2007, 20:47:37 »

You could always do a twin tank set up, pretty easy, and it gives you the opportunity to flush out the oil now and again.

Little-Green-Machine · « **Reply #26 on:** June 24, 2007, 21:37:18 »

we run our disco and series 2 on 100% bio fuel run better and have a little more grunt

Sharpshooter · « **Reply #27 on:** June 24, 2007, 21:43:23 »

I run my 2.5 nad and my 200tdi on pure bio-fuel. I havnt experianced any probs. I have noticed a quieter engine. Got to be better at 70 on the motorway. :)

rollazuki · « **Reply #28 on:** June 25, 2007, 09:21:10 »

ran zook on 30%veg(Isuzu 1.7 Tdi motor)
ran great, no issues at all

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AuthorTopic: Biofuel (Read 3340 times)

Wolfie

muddymart