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Hi All,

Has anyone ever considered using a biodiesel blend to increase lubrication and burn quality on these engines? Having looked at a few scientific studies it is often found that there is a huge increase in lubricity of the fuel when mixing 2-4% Biodiesel with regular diesel.

Note first in class on this scientific independent study

Lubricity Additive Study Results - Diesel Place : Chevrolet and GMC Diesel Truck Forums

and this one as well

http://biodiesel.org/docs/ffs-performace_usage/lubricity-benefits.pdf?sfvrsn=4

I am considering a 2-3% blend with regular diesel to help reduce fuel pump and injector wear. The only negative is when running strong mixes on a car with a DPF you can get the oil diluted by the biodiesel but I can't imagine that being a huge issue at a 2-3% blend! Only around 25%+

What do you think?

Quick, get down the Chippy before it shuts!!!
I agree with the above post, bit of a white ephilumt :banana:

 

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If you want to add extra lubrication to the fuel use 2 stroke oil, I do and have done on my previous diesels and they run great on it, much smoother and noticably quieter at tickover
200 to 300ml to a tankfull and I use the green mineral oil, saves any hasstle if you get stopped and the tank dipped for red

I've just measured out 300ml - That's a lot of 2 stroke oil for a tank full of diesel, are you sure?...
Don't think I'll be adding that much 2 stroke, I'm surprised it doesn't smoke like Billio??

 

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I've just measured out 300ml - That's a lot of 2 stroke oil for a tank full of diesel, are you sure?...
Don't think I'll be adding that much 2 stroke, I'm surprised it doesn't smoke like Billio??

I've just read up on this 2 stroke mix, you are correct that 300ml is about right for a full tank, however, trials conducted also concluded that due to the Zinc content within the 2 stroke, this built up & compacted on the injectors giving up to a 6% reduction in fuel flow over 16hrs continual running?
They noticed a spike at 8hrs where they stopped the engine and started again from cold, they concluded that the shock from cold start possibly shifted the Zinc build up but this soon built up again?
There were no significant improvements in power or lubrication on a common rail injection system, final conclusion was that the additives within diesel these days fulfilled the criteria for protecting a Diesel engine with no need for other additives?

 

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There has been one scientific looking trial. However to be honest out of my own experience with using 2-stroke oil in a common rail diesel Peugeot 306 I did notice it was quieter and also smoked a lot less surprisingly.

The thing is that the injectors in that car and the alfa currently were designed during a time when diesel was much more naturally lubricating. It had a higher sulphur content and since the needed to reduce sulphur has occurred a lot of people with older diesels have been struggling with the injector issues.

What I am going to do is trial it in this car. I am going to go for 500ml of 2-stroke oil (Which is low ash type so much less deposit causing and a lot less likely to cause DPF issues) It's a large tank so I don't see it being an issue at all to be honest.

I will then see how things go over the next few weeks and tank fill ups and document what I notice and any MPG and performance changes

Hi mate,
I'm thinking of doing the same on my trip next week?
Shouldn't hurt as a one off.

 

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Ive just gone by a few recomendations and on how the car sounded, i used it in my 159 from when i bought it at around 55k till when i sold it on 125k and it was running much smoother when i sold it and since using it in my Brera for around 8k miles so far it is definatly running smoother and quiter, whilst in queuing traffic this week I could hear the car beside me, and the car behind me over the sound of my car idling..
As mentioned above years ago Diesel was quite thick and oily, now it is more like kerosene and by the amount of companies making a good living from replacement injectors for diesels a bit of extra lubrication cant do any har.

I'll try it on my jolly next week & see how she goes - I'll report back.

 

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Bought 5l of 2 stroke oil, and a mixing jug for £23 or so all in.

Just mixed up 300ml of 2 stroke and 300ml of diesel to make it easier to pour and then put it in the tank. Will top up my tank to the brim with diesel and then see how things go with the new concoction and report back.

Have you seen this bargain......

 

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Decent. This is what I bought though
http://www.ebay.co.uk/itm/COMMA-TWO...373359&hash=item337c92cd56:g:jOMAAOSwdvpWC5c4

Same spec so that's good!
I'm not interested in buying a load just yet, I'll try a tank full first as I don't want to be lumbered with potentially 4.5L of the stuff :driving:
Report back and we will compare findings, just hope it's not bad!!

 

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My dad has a chainsaw that uses that level of 2 stroke so it'll get used eventually if worst comes to worst

**** sake don't say that!!!

 

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**** sake don't say that!!!

Have you seen the sports pedals for sale - Would look nice in the wagon?

 

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They look nice. Although for something that you pretty much never see that are tucked away down by the floor I don't think I would bother with the cost really. The ones I have now I am sure are pretty damn similar I think. Never really looked haha

Well just popped to Wilko for their magic green potion, will top the car up in the next hour or so and give this a bash - I just hope I don't go smoking all the way up North, that would be embarrassing!!!

 

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Don't know if you have added your mix yet but I've just done a trial run of around 30+ miles, I added approx 170ml to around 45L of Diesel - I'm sold!!!
Definitely quieter, got home on the drive and gave her a rev and it's for sure sounding much sweeter. I'll feel much more comfortable with my trip next week.
Surprisingly taken aback with how quickly it seems to have made a difference?

 

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That's good to hear! I have only done about 3 miles and most of that was with the music on haha so I didn't really notice. I am going out later so I will keep an eye on it then!

Any more news on your 2 stroke thoughts, any difference to your wagon?

 

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Glad to hear your pleased with the results.
If you do decide to use it regularly and buy a 5L bottle then a catering ketchup pump screws straight on and is easy to measue out, mine is 30ml per pump.

Lol, I've measured out an old water bottle at 150ml's and stuck it in the boot.
I'll use this up, revert back to normal for a few weeks just to confirm it is making some difference?
I want to see if the engine starts to sound as it did pre-2 stoke.

 

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This put me off.

Adding 2 Stroke Oil to Diesel

2-Stroke Oil In Diesel ? A Technical Study


I am not a believer in anecdotal evidence such as "It seems to sound quieter" etc, and this looks pretty scientific to me.

I've read these and others that contradict them, as with anything you get the for's and against - My feeling is that certain people in industry and government don't want this to be common knowledge as it does generate slightly more sulphur (acid rain), however it has been proven to extend engine components life, slight improvement in mpg and more surprisingly LESS emissions up to 50% by burning the diesel more efficiently.

 

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From the RAC site

try adding 2 stroke oil to the diesel. ratio of 1;200 Our Fiesta TDCi will return 68+mpg and runs smoother & quieter & more pull down low. It also reduces emissions FACT !
A German car manufacturer has carried out this test to try & reduce pump and injector failures due to low sulphur fuel & also discovered that the emissions reduce by around 50% and the engine runs a lot cleaner due to more complete combustion ! Low ash 2 stroke can be purchased for vehicles fitted with DPF's
You really should investigate it as the effect is quite considerable & you will find plenty of information on forums on this subject. Many users already *** TS0 with good results

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%.

 

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If ever you have had to de-coke a two stroke motorcycle you wouldn't agree that 2T oil burns cleaner than Diesel itself.

Also "Homeopathic doses". That isn't a good way to describe it, as Homeopathy is a load of bunk.


I am prepared to be proven wrong here, but I still think it is a bad idea. Unless you are running a car on kerosene, as they really does have poor lubrication properties.

2 stroke DIESEL motorbike? Never heard of one!
Being a previous owner of 2 stroke bikes in my youth and serving my apprenticeship as a mechanical engineer, I have stripped a few of these amongst other petrol engines - None were particularly clean and all needed de-coking to one degree or another.
Petrol & diesel act and burn differently, you can't make that comparison, the addition of 2 stroke makes no difference to what is left behind after ignition.

 

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The humble two-stroke might be the engine of the future
Renault unveils a tiny, two-stroke, two-cylinder turbodiesel.
RENAULT

BY ALEX KIERSTEN