Diesel Additives

[matthew2riches]

In my Land Rover I add a little bit of 2 stroke mineral oil to the diesel when I tank up. This greatly reduces the engine noise and makes everything feel a lot smoother....... :biglaugh:

I am wondering if I could do the same to my Golf without any issues. The Golf has a DPF, etc whereas the Landy does not.

Any ideas would be good. I couldn't see there being a problem in theory as diesel is essentially an oil and mineral 2 stroke will burn completely.

What do you think??

[Keithuk]

What are you calling a little bit of 2 stoke oil?

I wouldn't bother if I were you. You don't need any unnecessary oil being burnt especially with a DPF.

What sort of journeys do you do short or long?

[zollaf]

a bit of 2 stroke does work wonders, i add some to my 80 when running derv.
now, with a dpf you need to use a low ash engine oil so as to avoid damage to the dpf. a new dpf is a small fortune. do you want to take the risk. i wouldn't myself, but thats just my opinion. maybe you could try it and see what happens.

[matthew2riches]

On that basis I think I'll leave it.

It just transformed the land rover and also my transit. However neither of them have DPF.

[Doctle Odd]

I put in a pint of petrol once a month as a cleanser

[matthew2riches]

What car do you have?

[Doctle Odd]

I put it in every diesel car I ever owned. Those expensive additives are petroleum based but way more expensive. It was popular years ago when diesel was a dirty fuel I dunno how effective it is in modern cars but old ways die hard

[Keithuk]

I've been doing a bit of searching on this subject.



Effects of 2t oil added to diesel cars.

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 negative 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 (sulphur contained) diesel.
The engine-research centre of a well-known German car manufacturer 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 homeopathic doses 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 burns 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 clog, and the "burn free" process of the DPF will be much less.
More information: in Germany we have to present our cars every 2 years to the TUV -Technical Supervision Organisation - who will check, amongst 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 mileage by 3-5%.

[matthew2riches]

This is what I thought with my other vehicles. So it sounds like it won't cause too much of an issue with the DPF? Where was that info sourced Keith?

[Doctle Odd]

.3 l to 70l? what's this, homoeopathy? I had a quick look on TDIClub and the consensus seems to be 2 stroke is a NONO in common rail and DPF engines.

[zollaf]

so no one can say for sure. it certainly does make my 80 smoother so it does something to an old rotary pump built when sulphur was ok and din't kill squirrels.

[adamss24]

2T oil works in any diesel engines, the later CR have DLC coated nozzles to withstand wear from "dry" fuels, it definitely won't hurt in older PD or VE engines. I would use it and if the DPF plugs- there's a good excuse to remove altogether and have a remap/DPF delete !

[Keithuk]

I just Googled 2 stroke oil in diesel and its the second link in the RAC forum.

[bobh6742]

Personally i dont believe in any additional fuel additives
I
just dont accept that a supplier of additives has the money and development resources to match those of the top petrochemical companies
A dose of additive to a tank of fuel would probably add a couple of quid to the cost of the fuel so why not buy the Super version of the fuel with the essential cleaning ingredients already added
Petrochemical giants like Shell BP etc sell millions of gallons of scientifically developed fuel to safeguard your engine compared to the trifling amount produced by the additive cleaning producers
The top fuel suppliers can prove with data the effectiveness of their fuels. In the absence if data its just someones opinion !