2 stroke in a diesel

[blueh2steve]

Not sure if this has been posted before

found this on another website, does anyone have any comment on this one? I believe adding of 2-stroke oil is a regular thing in the States.
Due to the pollution control measures of the EC diesel-oil is nearly sulphur free and contains up to 5% of bio-diesel. Sulphur has the property to grease the high pressure injection pump and the injectors. Without sulphur, the reduced greasing property of the new diesel has already shown negativ impacts on the long-term stability of the injectors and the high pressure pump. The pump manufacturers have tried to react by lining the moving parts of the pumps with teflon or other suitable material. However, the long term stability is still not achieved as with the old (sulphor contained) diesel.
The engine-research centre of a well known German car manufacurer has conducted some long term tests of diesel additives to find out whether any one of them will have an impact on the long term reliability of the diesel engine components. This introduction to explain were my information comes from.
The results of this research: any diesel additive of any manufacturer presently on the market is not worth the money!
BUT: 2-stroke oil, which we use in our motor saws, lawn mower or in 2-stroke motor engines has shown to have an extreme positive impact on diesel engines, if such 2-stroke oil is added to the diesel in a homoeophatic dosis of 1:200. In practical terms: 0,300 litre of 2-stroke oil into the 70l diesel tank. The 2-stroke oil will be absorbed by the diesel (emulsion) and grease every moving part of the high pressure pump and the injectors.
Besides this, the 2-stroke oil will keep the diesel engine clean, as it burnes cleaner as the diesel itself.
In other words, the 2-stroke oil has a much lower ash-content as diesel, when burned. This proven fact delays the DPF (diesel particulate (soot) filter) to clogg, and the "burn free" process of the DPF will be much less.
One more information: in Germany we have to present our cars every 2 years to the TUV -Technical Supervision Organization - who will check, amongs others, the pollution of petrol and diesel engines.
The measured cloud-factor of a diesel engine without use of 2-stroke oil has been 0,95.
The same factor with the use of 2-stroke oil has been 0,47 - reduction of nearly half of the soot particles.
Besides this, the use of 2-stroke oil in the diesel will increase the milage by 3-5%.

I also dug this up from another forum, apologies for plagiarism to the original author.

I did a lot of research on 2 stroke oil in diesel engines.
It seems our American cousins are already wise to the benefits of a drop of 2 stroke oil.

Anyway the science is well proven , it burns more completely than diesel , reduces engine smoke to virtually nothing , cleans the combustion chamber , it appears to lubricate the egr valves to close more evenly.
(I had a lazy egr valve one side but it's not lazy any more)

You can buy 2 stroke oil cheap enough on ebay , from wilkinsons or b+q.

I've used it for a few months now in my RRS and the wife's A4 tdi.
Much quieter when cold ,much better throttle response . no smoke unless I drive like a test pilot when I get a light haze from the pipes instead of the smoke I used to get.The throttle response is the big difference.
It is more lively and the gearbox doesn't hunt up and down at all.

just 300mL of 2 stroke oil in a full tank really does give you wings.

I've got my dad using it in his Mitsi L200 navvy wagon , same story.
Neighbours ford focus , different motor!!
Mates escort diesel van 1.8 , much smoother +quieter.

Any questions ask away , I've had such success I thought it was my duty to report it.

I've done a fair bit of research for bulk buying , I wont post it as it might be construed as commercial posting.

It's such a small percentage of the full tank it can do no damage and dissolves completely.

I dont see how we can lose.

 

[fingers99]

No idea if it's true or not -- I'd not call that quantity of 2 stroke homeopathic, as it's about half the volume people use in Wankels with the oil injector pump disconnected.

I'd like to see the "real" research, rather than someone's reportage of it.

For all that, I can't see it doing any harm at all. If it really works, before and after results on a rolling road should show something.

 

[jim cooper]

Why not just have a 2 stroke diesel, like the Commer lorries of the 1950s

 

[StuartH]

Manufacturers spend millions developing diesel engines these days, millions.

They design them, oddly enough, to run on the fuel you can buy at the pumps.

The fuel you buy at the pumps has been created to exacting standards by experts in their field, not by the likes of you or me pouring in a little oil from a wobbly bottle on a windy forecourt until "that's about right".

I hope non of you are seriously thinking about doing this? It's right up there with the "+20bhp Chips" or "Electric turbo" you can buy on eBay....

 

[pasotibbs]

Manufacturers spend millions developing diesel engines these days, millions.

They design them, oddly enough, to run on the fuel you can buy at the pumps.

The fuel you buy at the pumps has been created to exacting standards by experts in their field, not by the likes of you or me pouring in a little oil from a wobbly bottle on a windy forecourt until "that's about right".

I hope non of you are seriously thinking about doing this? It's right up there with the "+20bhp Chips" or "Electric turbo" you can buy on eBay....

I suspect it's more a case of engines being designed to run reliably on the worst fuel available and pass emission tests,which is why diesel remaps seem to give better power and MPG in countries with good fuel ?

Diesel will be designed to burn with as few emissions as possible rather than be the best fuel ?

Adding 2 stroke oil probably works but a car maker or fuel producer could never legally do it.

We'd all probably have lean burn engines now(and very good MPG) if the EU hadn't made Cats a legal requirement rather than setting an emissions standard and letting the car makers explore different solutions to achieve it !!
If I remember correctly Toyota had invested heavily in lean burn and had very good results but you can't have a Cat on a lean burn engine so the project died (no point building an engine thats illegal to sell in your export markets!!)

 

[StuartH]

Diesel maps work by upping the fuelling, mainly the on boost fuelling - thats why you get a cloud of smoke when you nail them. I still maintain that this is a load of nonsense and 2 stroke oil is a very bad idea - modern injection systems work to very fine tolerences, and personally I don't think anything except the fuel they are designed for should be used.

I do agree with you about cats and stuff though.... Mr Shorttermist in the government at work again.

 

[pasotibbs]

Diesel maps work by upping the fuelling, mainly the on boost fuelling - thats why you get a cloud of smoke when you nail them. I still maintain that this is a load of nonsense and 2 stroke oil is a very bad idea - modern injection systems work to very fine tolerences, and personally I don't think anything except the fuel they are designed for should be used.

I do agree with you about cats and stuff though.... Mr Shorttermist in the government at work again.

You may be right, but like I said a small amount of 2 stroke may have advantages if added to modern super clean diesel, but then again....
It really needs someone to test it out, one advantage is you can get aromatic 2 stroke oils and leave a lovely cloud of strawberry smoke in your wake
Anyone thinking of hiring a diesel in the near future.....

Cats may be the biggest automotive mistake ever !!!(never mind the pollution around the platinum mines)
They only used them in the US because everbody ran big V8's and nobody wanted to tell them that they couldn't have them anymore !!
If the EU had set tough emission standards and let the car makers meet them by any means possible who knows where we would be now, lean burn had great promise (and great mpg) and I'm sure there are lots of prototype engines gathering dust somewhere because they were made technically illegal!!

 

[Hellcat]

You can buy lean burn engines in the UK - Alfa JTS

http://www.evo.co.uk/carreviews/evocarreviews/19663/alfa_romeo_156.html

http://www.italiancar.net/site/FACTfiles/alfa/alfa156JTS/Alfa156JTS-1.html

 

[pasotibbs]

Excellent idea, but how much better would it be if not forced to have a Cat ?
The problem with Cats is they are easily damaged if the engine is run too rich or lean so engines have to be designed to work within these tolerances, it's a crude solution.
Direct injection and truly variable valve timing have the potential to transform the internal combustion engine,we may even see 2 strokes return in a big way if Direct injection is reliable enough (Ford had some 2 stroke Fiesta's on trial a few years ago)
As long as the "powers that be" don't create anymore flawed laws we may yet see some outstanding engines.