Running on veg Oil?..

[tony sayer]

Had to be asked didn't it;!

If this fuel supply crises and panicked buying gets much worse could you
sort of pad out what's in your diesel car tank with some cooking oil
this is the unused stuff, not thats ex the chip shoppe!

Anyone done it?..

[Andy Burns]

Post by tony sayer
Anyone done it?..

Seen it done in a supermarket car park, but then I think the price of those 5l
drums of cooking oil rose to nearly match diesel...

£1.30/litre

<https://www.sainsburys.co.uk/gol-ui/product/bigger-pack/ktc-extended-life-rapeseed-oil-5l>

[Theo]

Post by Andy Burns

Post by tony sayer
Anyone done it?..

Seen it done in a supermarket car park, but then I think the price of those 5l
drums of cooking oil rose to nearly match diesel...
£1.30/litre
<https://www.sainsburys.co.uk/gol-ui/product/bigger-pack/ktc-extended-life-rapeseed-oil-5l>

It used to be about 50p/litre, when diesel was £1/litre. Then I think it was
the 2000 fuel crisis and it began to track the price of diesel.

Theo

[Sysadmin]

Post by tony sayer
Had to be asked didn't it;!
If this fuel supply crises and panicked buying gets much worse could you
sort of pad out what's in your diesel car tank with some cooking oil
this is the unused stuff, not thats ex the chip shoppe!
Anyone done it?..

My Mercedes G-Wagon GDS ran quite happily on cooking oil, but it was an
indirect injection diesel engine.

[Jethro_uk]

Post by tony sayer
Had to be asked didn't it;!
If this fuel supply crises and panicked buying gets much worse could you
sort of pad out what's in your diesel car tank with some cooking oil
this is the unused stuff, not thats ex the chip shoppe!
Anyone done it?..

HMRC used to get quite ferocious about it ISTR.

Not sure todays modern diesels would cope so well.

I'm still impressed by the Chieftain engine - would run on anything from
veg oil through paraffin to petrol and white spirits, apparently.

[SH]

Post by Jethro_uk

Post by tony sayer
Had to be asked didn't it;!
If this fuel supply crises and panicked buying gets much worse could you
sort of pad out what's in your diesel car tank with some cooking oil
this is the unused stuff, not thats ex the chip shoppe!
Anyone done it?..

HMRC used to get quite ferocious about it ISTR.
Not sure todays modern diesels would cope so well.
I'm still impressed by the Chieftain engine - would run on anything from
veg oil through paraffin to petrol and white spirits, apparently.

http://biopowered.co.uk/wiki/Processor_-_with_methanol_condenser_(GL_design)

[Sn!pe]

Post by Jethro_uk

Post by tony sayer
Had to be asked didn't it;!
If this fuel supply crises and panicked buying gets much worse could you
sort of pad out what's in your diesel car tank with some cooking oil
this is the unused stuff, not thats ex the chip shoppe!
Anyone done it?..

HMRC used to get quite ferocious about it ISTR.

[...]

I heard a story about the Revenuers chasing Cardiff taxis
whose exhausts smelled like fish and chip shops.

[SH]

Post by Sn!pe

Post by Jethro_uk

Post by tony sayer
Had to be asked didn't it;!
If this fuel supply crises and panicked buying gets much worse could you
sort of pad out what's in your diesel car tank with some cooking oil
this is the unused stuff, not thats ex the chip shoppe!
Anyone done it?..

HMRC used to get quite ferocious about it ISTR.

[...]
I heard a story about the Revenuers chasing Cardiff taxis
whose exhausts smelled like fish and chip shops.

Yeah, the Frying Squad from the police were involved :-)

S.

[SH]

Post by SH

Post by Sn!pe

Post by Jethro_uk

Post by tony sayer
Had to be asked didn't it;!
If this fuel supply crises and panicked buying gets much worse could you
sort of pad out what's in your diesel car tank with some cooking oil
this is the unused stuff, not thats ex the chip shoppe!
Anyone done it?..

HMRC used to get quite ferocious about it ISTR.

[...]
I heard a story about the Revenuers chasing Cardiff taxis
whose exhausts smelled like fish and chip shops.

Yeah, the Frying Squad from the police were involved :-)
S.

there was an an allowance introduced where you could have the first 2000
miles or litres (memory fails me) duty free when running on Veg oil or
home brew biodiesel.

S.

[Michael Chare]

Post by tony sayer
Had to be asked didn't it;!
If this fuel supply crises and panicked buying gets much worse could you
sort of pad out what's in your diesel car tank with some cooking oil
this is the unused stuff, not thats ex the chip shoppe!
Anyone done it?..

What you need is Hydro Treated Vegetble Oil there are a few cars that
can use it now, but not mine according to VW. Esso plan to sell diesel
with 30% HVO to farmers. The may have started doing this now.

Tanker drivers used to be very well paid as the unions could hold the
oil companies to ransom. The oil companies started using owner drivers
I remember Tony Blair saying he was surprise when he learnt
about this a few years ago when the drivers were reluctant to drive
their vehicles passed picket lines

[Martin Brown]

Post by tony sayer
Had to be asked didn't it;!
If this fuel supply crises and panicked buying gets much worse could you
sort of pad out what's in your diesel car tank with some cooking oil
this is the unused stuff, not thats ex the chip shoppe!
Anyone done it?..

I know someone who does it and has been doing it for at least a decade.
Taking scrap oil and cracking it to glycerol and motor fuel.

It involves some quite dangerous chemistry to turn cooking oil into a
really effective diesel substitute. Get it slightly wrong and you
dissolve your engine block. If you are running an almost end of life
land rover it possibly makes sense but expect to have the odd disaster.

He got quite good at it after writing off a couple of engines...

Simplest solution is get up early - that's what I did to get my fuel
this morning. I need to cover over 600 miles this week. Normal weeks
post pandemic I wouldn't have bothered but this week is special.

[SH]

Post by Martin Brown

Post by tony sayer
Had to be asked didn't it;!
If this fuel supply crises and panicked buying gets much worse could you
sort of pad out what's in your diesel car tank with some cooking oil
this is the unused stuff, not thats ex the chip shoppe!
Anyone done it?..

I know someone who does it and has been doing it for at least a decade.
Taking scrap oil and cracking it to glycerol and motor fuel.
It involves some quite dangerous chemistry to turn cooking oil into a
really effective diesel substitute. Get it slightly wrong and you
dissolve your engine block. If you are running an almost end of life
land rover it possibly makes sense but expect to have the odd disaster.
He got quite good at it after writing off a couple of engines...
Simplest solution is get up early - that's what I did to get my fuel
this morning. I need to cover over 600 miles this week. Normal weeks
post pandemic I wouldn't have bothered but this week is special.

And you can make hand soap out of the waste glycerol..... then sell on
when the next panic buy starts on toilet roll, hand wash gel, hand soaps
and shower/bath soaps!

S.

[Martin Brown]

Post by SH

Post by Martin Brown

Post by tony sayer
Had to be asked didn't it;!
If this fuel supply crises and panicked buying gets much worse could you
sort of pad out what's in your diesel car tank with some cooking oil
this is the unused stuff, not thats ex the chip shoppe!
Anyone done it?..

I know someone who does it and has been doing it for at least a
decade. Taking scrap oil and cracking it to glycerol and motor fuel.
It involves some quite dangerous chemistry to turn cooking oil into a
really effective diesel substitute. Get it slightly wrong and you
dissolve your engine block. If you are running an almost end of life
land rover it possibly makes sense but expect to have the odd disaster.
He got quite good at it after writing off a couple of engines...
Simplest solution is get up early - that's what I did to get my fuel
this morning. I need to cover over 600 miles this week. Normal weeks
post pandemic I wouldn't have bothered but this week is special.

And you can make hand soap out of the waste glycerol..... then sell on
when the next panic buy starts on toilet roll, hand wash gel, hand soaps
and shower/bath soaps!

He mixes it with sawdust waste obtained from another local enterprise
and burns the resulting blocks in his log burner. He's an interesting
guy. He has a stone saw that any James Bond villain would be proud of!

He can cut accurate pieces straight off 3m blocks of stone with it.

[Harry Bloomfield, Esq.]

He mixes it with sawdust waste obtained from another local enterprise and
burns the resulting blocks in his log burner. He's an interesting guy. He has
a stone saw that any James Bond villain would be proud of!

Does he have a blog of some sort?

[Martin Brown]

Post by Harry Bloomfield, Esq.

Post by Martin Brown
He mixes it with sawdust waste obtained from another local enterprise
and burns the resulting blocks in his log burner. He's an interesting
guy. He has a stone saw that any James Bond villain would be proud of!

Does he have a blog of some sort?

He's a stone mason. I don't think he even has a telephone line.

I might have a picture of the saw somewhere. It is a diamond based chain
saw with a belt length of about 10m and some very clever tensioning and
water cooling systems to lubricate the cut. It is pleasing to watch but
you must never stand in line with the cut. If/when it snaps the whiplash
destroys anything in its path - usually some straw bales on wooden
railway sleepers to absorb the impact without damaging the chain.

I'm due to see him again shortly so if it's running I'll take a pic.

[Dave Plowman (News)]

Post by tony sayer
Had to be asked didn't it;!
If this fuel supply crises and panicked buying gets much worse could you
sort of pad out what's in your diesel car tank with some cooking oil
this is the unused stuff, not thats ex the chip shoppe!
Anyone done it?..

Many years ago, had a workmate who did. His son worked for a large
organisation and got the used oil cooking from them. Mate had a (simple)
filtration system set up for it. But it was an old diesel with mechanical
injection.

[Chris Green]

Post by Dave Plowman (News)
Many years ago, had a workmate who did. His son worked for a large
organisation and got the used oil cooking from them. Mate had a (simple)
filtration system set up for it. But it was an old diesel with mechanical
injection.

I know what you mean (I think) but in reality don't all diesels have
to have 'mechanical' injection? Otherwise no fuel would get into the
cyclinders. Electronic injection just means mechanical gubbins of
*some* sort controlled by electronics.

[Peter Hill]

Post by Chris Green

Post by Dave Plowman (News)
Many years ago, had a workmate who did. His son worked for a large
organisation and got the used oil cooking from them. Mate had a (simple)
filtration system set up for it. But it was an old diesel with mechanical
injection.

I know what you mean (I think) but in reality don't all diesels have
to have 'mechanical' injection? Otherwise no fuel would get into the
cyclinders. Electronic injection just means mechanical gubbins of
*some* sort controlled by electronics.

Common rail diesels use high pressure pumps at 2500 bar instead of 125
bar that are far more dependant on lubrication properties of the fuel.
The injectors are solenoid servo valves and not a spill valve that
mechanical injection used. The nozzles are a lot smaller as flow is
proportional to the square root of pressure. That requires the fuel to
be very clean and the viscosity is critical to flow.

You won't find a Euro IV (2005), V or VI compliant Diesel with anything
other than common rail. Common rail injection was required to meet Euro
IV emissions standard as it cut the limits for NOx and PM in half.

Because it's got an ECM it allows programmed response to test
conditions. AKA cheats.

[AJH]

Post by Peter Hill
Common rail diesels use high pressure pumps at 2500 bar instead of 125
bar that are far more dependant on lubrication properties of the fuel.
The injectors are solenoid servo valves and not a spill valve that
mechanical injection used. The nozzles are a lot smaller as flow is
proportional to the square root of pressure. That requires the fuel to
be very clean and the viscosity is critical to flow.

Yes and I very much doubt oil seed rape from tescos needs to be filtered
as well as DERV. The other thing is vegetable oils are triglycerides,
three fatty esters hanging off one node, treating it to make biodiesel
involves stripping off the glycerol and replacing the ends of three
chains with a methyl group, thus lowering its viscosity.