Interesting vegetable oil info/rough running

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AlexD333

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Joined
Jan 1, 2014
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7,847
So some interesting discoveries today has also got me thinking on my past.

Fuel was in the red, warning light was on too, I have a long trip to devon tomorrow so I though let's neck it with fuel, 3 barrels of veg oil in the tank (engine still warm) we were playing with the audio when she began coughing and smoking heavy, to be expected as the oil is thick and cold, stopped at station and squeezed 8l of diesel in. Still no better, let the engine get nice and hot which improved things slightly but we had the old eml light come on typical code 21..

My suspicion is that the cold fuel is too thick to pass at an acceptable rate through the injector and or pump thus causing a mis fueling/starvation symptom and in turn chucking up injector fault. I have since squeezed 4.5l of petrol in too to try and thin the mix, but I might have to hit the road tomorrow and use up some fuel and replace as I go :doh

Again e problem with motorway is that the wind chill factor will cool everything off, including the tank, making the stored and returning fuel cool off rapidly..

The only argument against this was when I ran the fuel low a few months back and added 30 quids worth of diesel it did not improve these weird symptoms, but this was also before I changed the fuel filter... (Which gives similar symptoms)

Silly me, have to get a good ratio going now winter is half here :rolleyes:

Refresh my memory, what ratios are people running (people who are using veg)

Excluding terrano bob that will write "diesel diesel diesel" with :augie:doh at the end of it :naughty see what I did there :naughty
 
What I'm trying to say is that I suspect my running issues to be related to this.

All that doesent make sense is that spraying seemed to cure it :nenau

Or incredibly coincidental timing on several occasions... :nena

Perhaps more than one issue :eek:
 
Most run 50/50 mix in the winter:augie code 21 can be caused by air or water in the fuel & the later T2's don't have the water sensor fitted:doh & i'm sure i've read veg can easily absorb water so this could be your problem so I would drain the water tap on the filter or replace the thing again & start using a lot more diesel & less veg if nothing else your IP & seal will love you for it
 
Don't use veg over a period of time I lost a lot of power from running on it. Took a good few miles with Derv in again to get full power back.
 
We've said it before but here goes run several tanks of dino diesel and see how it runs. Try veggie in summer may be but it does seem to cause a hell of a lot of problems.
 
We've said it before but here goes run several tanks of dino diesel and see how it runs. Try veggie in summer may be but it does seem to cause a hell of a lot of problems.

When I use Veg oil :doh I use it in the ratio of Diesel to Veg as 100:0

Never used veg oil, never had any running problems, starts first time every time...
Over a very long time, never had a spanner to the fuel system anywhere.... not even the mini filter:thumb2

So looking at the reliabilty issues of veg in the winter, what savings can be really had, what value can you put on risking saving a few pennies to be left stranded.

What would it really cost if you were an hour late getting to the airport, and missing your flight.:doh


So with the lower prices of diesel and petrol, has anybody noticed if veg oil is becoming cheaper, because if it is, then it is probably priced to follow fuel prices rather than a food type product. Just a thought...:nenau
 
ol, has anybody noticed if veg oil is becoming cheaper, because if it is, then it is probably priced to follow fuel prices rather than a food type product. Just a thought...:nenau

I've noticed over the years every time fuel prices go up so does the price of veg oil:doh it's been costing me a bomb to cook my chips:augie
 
Interesting views. As mentioned above I believe I have hit the nail on the head, obviously 60litres of veg in winter is inappropriate,

I believe the wind chill will cool the veg oil down enough to cause you an issue in motorway work ect, stationary is ok once engine is warm, as rick mentioned the swirl chamber will stay warm, once on the move the fuel will splash about in the tank..

It's gonna be kept under Area 51 regulations until it's pictured and threaded :naughty but it should hopefully allow me to run heavy veggie mixes.

I am also going to look into a volatile solution that is kind to rubber (if there is such a thing)
 
Most run 50/50 mix in the winter:augie code 21 can be caused by air or water in the fuel & the later T2's don't have the water sensor fitted:doh & i'm sure i've read veg can easily absorb water so this could be your problem so I would drain the water tap on the filter or replace the thing again & start using a lot more diesel & less veg if nothing else your IP & seal will love you for it

Sorry I was trying to reply to your post in particular and wandered off :lol

I don't believe it has absorbed water a I have just filled up and immediately had symptoms. Unless the sealed barrels are able to absorb? They are metal? Condensation? :nenau

On my last mix of 50/50 I had no running issues, coincidently at the same Time I sprayed everything... Well actually a slight delay but who knows... :rolleyes:
 
Condensation could be a poss cause but who is to say the barrel was 100% veg & not a contaminated veg/water mix that got out of the factory you can also get condensation on the inside of your fuel tank which from what i've read is a big cause for diesel bug. Code 21 = Wiring, fuel injection timing solenoid, injector needle lift sensor, CKP sensor, air or water in fuel:augie
 
Possibly Alex the water has been absorbed prior to your last fill up, think I would be changing the filter as a safeguard, Rick
 
Glad the Patrol will not run on veg (seems terano not much better) I run low on fuel pull into garage add diesel till full then drive no probs.

How much money is really saved v how much damage and agro you get, if you do not want to buy expensive fuels buy a petrol and get LPG conversion.

Kind regards

Russell.
 
Glad the Patrol will not run on veg (seems terano not much better) I run low on fuel pull into garage add diesel till full then drive no probs.

How much money is really saved v how much damage and agro you get, if you do not want to buy expensive fuels buy a petrol and get LPG conversion.

Kind regards

Russell.

:clap :thumbs
 
Glad the Patrol will not run on veg (seems terano not much better) I run low on fuel pull into garage add diesel till full then drive no probs.

How much money is really saved v how much damage and agro you get, if you do not want to buy expensive fuels buy a petrol and get LPG conversion.

Kind regards

Russell.

I have a petrol here with LPG conversion, and with LPG at 64p a ltr, anyone interested, in the new year I will be sticking it on fleebay, Rick
 
Glad the Patrol will not run on veg (seems terano not much better) I run low on fuel pull into garage add diesel till full then drive no probs.

How much money is really saved v how much damage and agro you get, if you do not want to buy expensive fuels buy a petrol and get LPG conversion.

Kind regards

Russell.
SVO v WVO?
EDIT: http://journeytoforever.org/biodiesel_svo.html
 
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To be fair, I am pretty sure there are a lot of people on here running Veg who never post any problems. Alex is the only one posting lots up about it in a negative light, most of the rest just use it in moderation, enjoying saving a few quid, but still appreciating that Diesel is still the best option, and definitely the obvious "fall back" when you need to start fault finding.

I think everyone has said many times, Alex is probably pushing his luck, and trying to save too much money, by using too high a percentage of Veg, especially when he is experiencing running issues, so is seeing and posting Veg at it's worst.

When I got my T2, I stayed away from Veg for many months, until I had used the search feature on here, and gone back through reading everyone of the old posts on Veg and Bio. The easy conclusion from it was, enjoy it in the warm weather, but take it easy in the cold... There were a tonne of additives to try and improve things, but they all seamed to have as many negative issues as they did positive, and many almost undo the cost savings of adding veg in the first place.

The other week, I ran out of Veg, so was running neat Diesel, car definitely started better from cold on Diesel, but other than that, everything else was the same.
 
see diesel diesel diesel then no problem safe journey :naughty :thumbs

Not always:augie put supermarket diesel in mine & it had water in it & truck wouldn't rev past 3k & got code 21:doh now travel an extra 3 miles & fill up at Esso & not had any problems:thumb2 oh that supermarket petrol station got closed until they sorted out their tanks & supply & ASDA supermarket in the next town was selling petrol that was 50/50 petrol & water:eek:
 
Think we need to start a thread on who uses what fuel and what if any issues they have so we can all become knowledgeable about the pros and cons before we stick any old S**t that claims to be fuel in our tanks.
 

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