Adding 2 stroke oil to diesel

[trophymick]

You've paid your duty on two stroke oil, it's up to you where you put it.

 

[Sweety]

You've paid your duty on two stroke oil, it's up to you where you put it.

Yip you've already paid your 20% VAT when you bought the oil from the shop:thumbs If customs wanted to take a fuel sample which they do at times all they would find is diesel & 2 stroke oil which isn't against the law if it was every 2 stroke motor bike would have to be scrapped:augie

 

[micktheshed]

Having used 2SO in my 3L for over a year, & being sad enough to keep accurate fuel records, I can confirm that it runs quieter, cleaner, & gives around 10% more to the gallon. When I've forgotten to put it in on accasion, it lets me know soon enough!
On average, solo has risen from 26 to 29 mpg (in winter so may be more in summer, but I'm usualy towing then) & towing a 1.6T caravan from 22 to 24. This allows for the additional quantiy of the 2SO.
BTW, I buy mine from Morrisons @£2 per 500ml. ie. £4 per l, & yes it must be mineral (but don't know why LOL). The cost is repaid by the improvements but I'd use it anyway.

 

[FormerSmurf]

BMW did some research and testing with this, I found this on another forum:

To all interested:
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 Organisation - 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%.
fill in 0,3 litre of 2-stroke oil with every tank filling. You will notice a surprisingly big difference in the smoothness of your engine running, the noise level is reduced, particularely when the engine is cold, and the fuel ecconomy will increase besides the described other advantages.
The 2-stroke oil I can recommend from my own experience (value for price) is the Liqui Moly 2-stoke oil, semi-synthetic, Product no. 1052 (blue plastic bottle). The use of 2-stroke oil is recommended also for diesel engines without DPF. If you "forget" to fill in the little dosis of 2-stroke oil - no problem. Just fill it in the next time.
Everybody who has used the 2-stroke oil in his/her diesel engine has confirmed that they could not have done better.

You can use fully synthetic 2-stroke oil but as too expensive, and you do not really need this high quality for your purpose. Semi-synthetic will do.

The use of 2-stroke oil in the diesel will under normal circumstances not be evident, as the 2-stroke oil will be absorbed by the diesel by forming an emulsion, which will not seperate.
As I have said, we have to undergo every 2 years a pollution control inspection by our TUV, and the emission values as measured are by far better with use of 2-stroke oil than without. I have not come accross any case in which a car manufacturer has waived its guarantee obligo for cars which have used this 2-stroke oil (off course, not knowing this).
Dismantling the test diesel engines after the 2-stroke oil test has revealed that such engines have been in an extroardinary clean and top condition. So why should any car manufacturer have any reason to waive any guarantees (for whatever technical reasons) if the concerned engine is otherwise in a clean and top condition.

Turns out it was BMW that were looking into it, they were having problems with varying quality of fuel across eu ..... issues such as ultra low sulpher.... effecting injectors etc. Apprantly they found the most benefit from low smoke 2 stroke ..... as this improved lubrication ......... which is greatly reduced with ultra low sulpher.

So you could use semi or full synth, but then you won't be getting as good value for money.

I have just put some cheapo 2SO in my T2 for the first time, about 180ml in £60 of diesel. I'll not be driving anywhere until after work, but will see how it goes over the weekend.

 

[Sweety]

Mineral 2 stroke works the best from what i've read:augie I add mine roughly every 2 weeks when I fill the tank but sometimes don't bother so the mix becomes very week/runs out but can tell by the sound of the engine. It can take around 30 miles before you start noticing the difference

 

[FormerSmurf]

So I've done about 250 miles since my 2SO adventure. Fuel gauge has gone from just under 3/4 to just under 1/4 and I've not been driving in the most economical manner.

For the first 75 miles, not an iota of difference anywhere. Then seemed slightly smoother working through the gears, but I'm unsure if this is a placebo effect.

After 130 ish miles, the truck (2.7 tdi) is noticeably quieter, especially idling (with clutch depressed...) and anfter 150+ miles, seems quieter at road speeds (urban and country A roads).

It seems the job is, as they say, a goodun.