FUEL : Diesel / City Diesel / Bio Diesel / Sun Flower Oil / Vegetable Oil / Waste Oil

Nissan 4x4 Owners Club Forum

Help Support Nissan 4x4 Owners Club Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
when did they change about the veg:nenau
Didnt know they had. That was the whole point of the 2500 litres as it's so difficult to enforce.
In theory you could put veg in and a spoon of petrol and you're making your own bio anyway :nenau
 
You must pay HMRC duty on vegetable oil when you put it into your tank. There is no allowance for VEG.
ONLY biodiesel is exempt of DUTY and VAT (up to 2500 litres per calender year) if you make it yourself.

If you get dipped with veg, you could be in trouble :eek:

If I was to run VEG, in addition to filtering I would also heat it up and leave it to settle for a few days, drain off the bottom water and crud.
Then add 5% petrol in summer more in winter.

Don't forget to add an inline filter as the veg will clean out the fuel tank and lines of rubbish. I put mine just before the main fuel filter
I bought 10 plastic ones on ebay for £1 each
taken from hmrc
4.2.1 Exempt producers/users
If you have produced or used less than 2,500 litres of:
any biofuel, or
any other fuel substitute or additive
within the last 12 months, and/or expect to produce or use less than 2,500 litres in the next 12 months, you are an exempt producer and do not need to register with us and account for duty. However, there are simple record keeping requirements, which are described in paragraph 4.9.1.
Production includes the manufacture or processing of road fuel, and the setting aside of any product that has not been charged with duty, with the intention of using it as road fuel
Also this


4.2.4 Can vegetable oil be used or sold as motor fuel free of excise duty?
Vegetable oil (unused and used, processed or unprocessed) that is set aside or intended for use as motor fuel is liable to duty unless the producer is exempt as described in paragraph 4.2.1. Vegetable oil producers and retailers who make and supply their oils for cooking are not liable to register and account for duty on their sales if the oil is subsequently used as, or to produce, motor fuel. Cooking oil producers and retailers who supply direct to fuel producers and distributors are not liable for duty unless they have set aside all or part of their production as motor fuel. In these scenarios it is the fuel producer or distributor who is liable to register and account for duty.So according to the hmrc site u can use svo with out needing to pay duty as long as it's under 2500l:bow:D
.
 
I've found mine is a bit resistant to start with 100% GM soya from Makro, but runs well on Tesco's Sunflower that they've been flogging at 2 x 5L for £10.

The soya is thicker and I find I have to splash a bit of petrol in there to make things happy again. Rapeseed oil seems to be the best for me.
 
I've found mine is a bit resistant to start with 100% GM soya from Makro, but runs well on Tesco's Sunflower that they've been flogging at 2 x 5L for £10.

The soya is thicker and I find I have to splash a bit of petrol in there to make things happy again. Rapeseed oil seems to be the best for me.

Avoid the Sunflower oil it's likely to burn out your engine. I can't remember who it was now but running neat sunflower was bad news. Rapeseed is defo good stuff :D
 
I can confirm that I've been having good results with used Vegetable Oil in my Mav :), there was sooooo much gunk in there that I had to go through a full pack of 10 J Cloth's to filter 1, 20 litre drum :/, once it had finally finished I put 4 litres of petrol in there, gave it a good shake about and left it for about 2 hours before pumping it in, it runs a lot smoother but smells like a bloody chip shop lol

Whats the best setup to have when filtering Veg Oil, as it took me nearly an hour to transfer it into a plastic drum through a funnel with a J Cloth Lining, I want something that I can leave filtering for as long as it needs to without me having to pour a cupful in every now and again it's so tedious.

Also in terms of some inline fuel filters will these do the trick?
http://www.ebay.co.uk/itm/10-x-INLI...CarParts_SM&hash=item5895228c82#ht_500wt_1180

And I'm assuming they will need to go on the line between the tank and the fuel filter? Or am I mistaken?
 
As an eBay Associate we earn from qualifying purchases.
Banshee, you need to deal with water in the used oil or you could kill the pump! Filtering won't get rid of the water, you ideally need to heat it to speed the separation and then leave to settle for a number of days. Some people use petrol to dewater and then obviously don't heat it! but this still takes a number of days to properly settle out.

Quick test for water in oil is to put a wee bit in a hot frying pan. If it pops and bubbles then you still have water present, if it just sits there and smokes, jobs a good un. Don't try this with petrol mixed in though!!
 
Banshee, you need to deal with water in the used oil or you could kill the pump! Filtering won't get rid of the water, you ideally need to heat it to speed the separation and then leave to settle for a number of days. Some people use petrol to dewater and then obviously don't heat it! but this still takes a number of days to properly settle out.

Quick test for water in oil is to put a wee bit in a hot frying pan. If it pops and bubbles then you still have water present, if it just sits there and smokes, jobs a good un. Don't try this with petrol mixed in though!!

O shite lol,I've just been whacking the petrol in giving it a shake and just been transferring it in lol, if it makes any difference, when I pumped it into the tank the car was standing for 10-11 hours
 
I'm no expert at this, but I doubt one tankful will ruin much, the 2.7L lump is pretty forgiving. Might be worth a check on your water trap in the fuel filter (if your variant has one) after this tankful has gone through.

Best option is invest in some old oil drums and a bit of plumbing bits. Cut the top off the 1st drum and (after protecting the sharp edge from cutting you and/or the sheet) ratchet strap an old bedsheet over the top so it suspends down into the drum.

Now you can slug whatever you get in there and let it drip through.

Fit a heater in the base of the drum (standard immersion will do) and heat the lot up to about 60 degrees to speed the settling process up. within a week the water and other finer bits should drop to the bottom.

pump off from the top through a number of filters - either standard 10" water ones or filter socks into another drum that you can then add the petrol to. Test the oil fist to make sure it's water free.

Pump off the top again a day later through a final filter to the tank.
 
dont know what fuel pump fitted, i use advanced diesel, always service car regular, usualy get 10mile to the liter, hope this helps.
 
I'm a bit worried now lol

Driving home last night the motor was struggling to reach anything over 50, it was really lumpy and if I planted my foot to the floor the truck would judder and I would get white smoke plume from the back.

What's causing this??

I've since filled the truck to the brim with Diesel and it now seems a bit better as it will reach 60 but starts to struggle again.
 
Blocked filter(s) - running veg can clean years of crud out of the tank - you probably need a new fuel filter fitting, failing that check the mini filter under the banjo bolt.

The other thing that can cause this is air in your fuel lines, straight veg is much thicker than diesel so the pump needs to suck harder, if there is any weakness in the fuel lines, it's more likely to ingest air when running on thicker fuel. The viscosity affects the flow rate through filters too, hence the improvement on diesel.

By mixing in 15-20% or so of petrol to oil, you bring the viscosity back to near that of diesel as well as cure any winter running issues.
 
Blocked filter(s) - running veg can clean years of crud out of the tank - you probably need a new fuel filter fitting, failing that check the mini filter under the banjo bolt.

The other thing that can cause this is air in your fuel lines, straight veg is much thicker than diesel so the pump needs to suck harder, if there is any weakness in the fuel lines, it's more likely to ingest air when running on thicker fuel. The viscosity affects the flow rate through filters too, hence the improvement on diesel.

By mixing in 15-20% or so of petrol to oil, you bring the viscosity back to near that of diesel as well as cure any winter running issues.

Judging by what you've said there then I'd say that my fuel filter is probably blocked lol, I've already enquired into prices for new fuel filters and can pick up a new one for £10.

Where's this Banjo bolt? and what does it do?

I've been mixing petrol with the oil anyway and looking at it in the drum it doesn't seem any thicker than neat diesel anyway.

Will deffo be replacing the fuel filter this weekend then, going to grab one at lunch I think
 
There's a download to detail the banjo bolt stuff, look at the second link in the quick links thingy at the top of the page here.

I didn't remove any parts to get to mine, just used an extension bar for the socket and an extendable magnetic pickup tool that I got from Tesco's for a quid.

To wheek the filter out, I bent a wee hook out of the metal stiffener found in an old wiper blade - I was surprised at how far down the hole under the spring the filter was! Some trucks don't have one, some have the filter inside the bolt. I was going to clean mine, but I dropped it so now I do without!
 
There's a download to detail the banjo bolt stuff, look at the second link in the quick links thingy at the top of the page here.

I didn't remove any parts to get to mine, just used an extension bar for the socket and an extendable magnetic pickup tool that I got from Tesco's for a quid.

To wheek the filter out, I bent a wee hook out of the metal stiffener found in an old wiper blade - I was surprised at how far down the hole under the spring the filter was! Some trucks don't have one, some have the filter inside the bolt. I was going to clean mine, but I dropped it so now I do without!

Bansee has a tdi so if it has a filter it will be in banjo bolt not in the pump like the td.
 
Right guys

I popped outside earlier today to replace the Fuel Filter but it was on soooooo tight I couldn't remove it so I've had to put it all back together and I' going to pop to halfords when I'm dressed to pick up a filter removal wrench

I've had a look in the quick links section which is very very handy, but looking at it, it does sound like my issue could be with the Fuel Pump Mini Filter :( but that looks like a ballache of a job :(

I'm going to replace the filter anyway as I'm not sure the last time this was done and if the problem persists I'm going to have to give the mini filter a look :(
 
Fuel Filter fixed it :), there was sooooo much crud and junk in there.
Fitted the new one and it seems a lot quicker now and runs perfect :)

Phewwww lol
 

Latest posts

Back
Top