Running on cooking oil

[R2D2]

Hello again

Just wondering what mods are needed to run my 200Tdi RRC on cooking oil?  Also will it run on new and/or used oil? 8-[ 8-[

Thanks

[Range Rover Blues]

Used oil brings it's own problems, heating veh oil creates free fatty acids, I can't remember why they arte bad though :doh:

[Bobtail]

Hello again

Just wondering what mods are needed to run my 200Tdi RRC on cooking oil?  Also will it run on new and/or used oil? 8-[ 8-[

Thanks

Hi Mate

been running my 200tdi RRC on cooking oil for a while now with very little probs

have sent you a pm with my mobile number if you fancy a chat

cheers

Jim

[Range Rover Ron]

Hello All,

I've never been a fan of using cooking oil,
if the engine was supposed to run on cooking oil it would have been designed to do so!

A fellow club member has been running on cooking oil and it leaves some deposits that are not left by deisel.
I've used oil in various mechanical applications world wide and found hardened depostits that cause porblems.

When I'm behind the ccoking oil burner it smells like a chippy!

I'm happy to run my 300 Tdi on what it was designed for.

But each to their own.

Ron, LLROC.

[crazymac]

I've never been a fan of using cooking oil,
if the engine was supposed to run on cooking oil it would have been designed to do so!

I'm happy to run my 300 Tdi on what it was designed for.

It was! Rudolf Diesel designed what is now known as the Diesel engine to run on Peanut oil!!

It was the petrochemical companies that got us onto heavy oil!

[waveydavey]

I've never been a fan of using cooking oil,
if the engine was supposed to run on cooking oil it would have been designed to do so!

I'm happy to run my 300 Tdi on what it was designed for.

It was! Rudolf Diesel designed what is now known as the Diesel engine to run on Peanut oil!!

It was the petrochemical companies that got us onto heavy oil!

True - sort of.

The principle of the engine was designed to run on pretty well anything, including coal dust but specific engines are made to run on a particular grade of fuel

[Range Rover Blues]

Rudolph's first engine ran on coal dust, then onto peanut oil.  Can't remember quite when the oil boys mucled in on the act :-k

[waveydavey]

Rudolph's first engine ran on coal dust, then onto peanut oil.  Can't remember quite when the oil boys mucled in on the act :-k

Not 100% sure on this but I think it was because around that time they had found all this black stuff but didn't really have a market as everybody was burning coal or wanted it refined to petrol. The compression ignition engine meant they could get rid of the stuff they didn't really want!

[Range Rover Blues]

Yes probably a case of finding a market for an otherwsie unwanted prodcut, like LPG.  Deisel also doesn't burn too well in theopen so it was little use for conventionaly heating.

I understand if you mix it with amonium nitrate it'e highly explosive :-k, but unless yiou heat it or atomise it it doesn't burn easily.

[waveydavey]

Bang on - that is why the oil industry is so rich; they generated markets for everything and sell 100% so no waste to pay to get rid of and money for everything they bring in.

[Pete5844 as was]

If you run it on old cooking oil it has the fats from the food in it this not only smells like your driving about in a mobile chip shop but it goes solid and blocks the fuel filter in cold weather.Pete

[waveydavey]

i just drained my astra out of diesel and put 5-1 of cooking oil in and it would not start that was 1.8 ltrs of oil to 360 ml of kerosene (heating oil) then put a further 2ltrs of heating oil in and bingo it started

Be careful what you post; although the rules now allow veg oil in limited quantaties for private use I am pretty sure that untaxed petroleum products are still illegal - if not we could all burn red diesel up to the quantity cap.

I am sure somebody who knows more will be along with the proper rules.

[Range Rover Ron]

I dont think old Rudolph was involved in the design work for the Tdi engines that LR put in the Discos/Defenders and RRC's.
LR designed their engines to run on Deisel.
Modern engines and modern fuels are specifically designed to each other.

Pete has reiterated what I said about hard deposits from the Cooking oil.

As for getting involved in mixing with other fuels to get it to start or run,
Well I have to be honest and say that I really could not be bothered to go to all that trouble just to save a few pence.
I'd be happeir just going to the local service station and filling up with the proper stuff.

Deisel is it's self designed to have a "flashpoint" at a certain pressure, (the point when it ignites)
All fuels have a different "flashpoints", some needing ignition some combusting under pressure,
Mixing will not only affect the "flashpoint" but could do serious damage to your engine.

I suppose you make your bed and then have to lie in it!

Cheers..............

[Range Rover Blues]

Fuels for compression ignition engines are rated on their "cetane" equivelent, it's the opposite to Octane.  IIRC reference fuels are made up of octane and cetane, but I may be wrong there.

Anyhoo, AFAIK the cetane rating of bioderv is similar to that of dinoderv, veg oil is a litte lower, but not enough to be a problem provided it atomises properly in the combustion chamber so that it can burn, that's the issue with veg oil as it's thicker.

[crazymac]

It all may become a bit academic the way veg oil is going up!!

I bought some 2 weeks ago in Tescos for £2.21 for a 3 litre bottle. Today for the same bottle they wanted £2.98!! [Edited]??? They can shove it, I went and bought elsewhere

[waveydavey]

Diesel is it's self designed to have a "flashpoint" at a certain pressure, (the point when it ignites)
All fuels have a different "flashpoints", some needing ignition some combusting under pressure,
Mixing will not only affect the "flashpoint" but could do serious damage to your engine.

If we want to get like this that's not strictly true. Flash point is the point where in an open container if a flame is applied a 'flash' of flame will occur, that is no good for burning but very relevant for safety.

The critical point for Diesel is the SIT or self ignition temperature; again you can have it at any pressure and it won't ignite, what ignites is the temperature caused by the rapid compression.
LPG has a very low flash point (very very low) but a very high SIT; it will basically never burn without an ignition source.

Yes Rudolph had nothing to do with modern engines but the principles are still the same; if it's atomised enough and hot enough it will burn. The products and effects of these are each down to engine owner to decide on if they are happy with for a particular fuel

As for Biodiesel it is manufactured to replace Dinodiesel so has basically the same properties.