Most interesting subject.

Very keen to try when they deliver my car, but since they do checkup after an initial few kms, I think I'll wait till after that. At least then I might sence a difference to make me confident (or not) to continue.

Will look into the better engine-oil also on my first real service.

I can understand people's reluctance to use any liquid that has not been recommended by the manufacturer, especially with regard to our FL2 engines.
However, LR are not the makers of this engine, and LR's allegiance to PSA is formative, to say the least. That is a shame, because LR have had a fine history of solid, reliable diesels to their name; it was obviously, to LR, more remunerative to bring in another manufacturer for the FL2 marque.
It is mainly for this reason that I believe firmly with YF on both counts; LR have seriously underestimated their prospective lube oil specification for the PSA engine, and the reduction of added sulphur for lubrication purposes in all mainstream diesel fuel pumping stations (UK) may contribute to local lubrication problems within the high pressure fuel pump (common rail injection).
I therefore endorse, yet again, YF's recommendations, and having had some really expensive lube oil (Castrol Edge) put into my car's engine, and the addition of approx 1:200 2-s oil (JASF/A to C, whatever was available at every fill-up), I may say quite categorecally that I am more than satisfied with engine performance.
If I could realise the same sort of results on the larger engines that I work with, at sea, then I would be more than happy.
Chris.[/b]

Hello Yamaha Fan, All,
I joined your forum following the link supplied by another member of briskoda. I owe a Skoda Octavia RS TDI PD 170 and just wanted to share my finding after having tried a DIY addiction to my tank (around 55lt, 60 with reserve) . My car has 10 months and 50000Km (yes I drive a lot ). I filled with:
- about 200cc White spirit (also known as Stoddard solvent), which should act as a detergent;
- about 200cc Kerosene, which should raise cetane number;
- about 50cc (but I0m not absolutely precise here) of 2stroke oil.

Results: Car was much more silent (when cold, I almost can't hear the engine at idle), quick to rev (I reached about 4900rpm) and smoooth.

I'd like to know your opinions and expertise on this mix or other recipe, besides filling next tank with 300cc semi synth 2 stroke oil.
Thank you,
Stefano

Hi Genoa1893
I admire your courage to add this mixture to your fuel (diesel) tank! I would strongly recommend NOT to do it!
I firmy believe that the addition of 2-stroke oil in the ratio 1:200 to the full tank (330 cc to 68 litre) will serve all purposes as mentioned by you, besides considerable reduction of diesel soot.

YF

Important News on the 2-Stroke Oil to diesel theme:
The International Automobil Association has issued an official statement in the Worldwide Fuel Charter in which they demand to increase the lubrication capabilities of todays diesel fuel from at present HFRR 460 um, or higher, to min. HFRR 400 um, or lesser. The reason is the increasingly reported break down of the high pressure diesel injection pums worldwide, and the unwillingness of the manufacturers to deal with the vast amount of warranty claims.
The Wordwide Fuel Charter has confirmed that the commercial diesel fuel even with the addition of the recommended dosis of 2-T oil STILL conforms to the DIN standard, however with a recognisable inmprovement of lubricating properties.

So we will see in the future here a developement in diesel fuel qualities.

YF

yamaha-fan wrote:

I would strongly recommend NOT to do it!
YF

Hi Stefano
Diesel fuel for commercial vehicles is manufactured to international standards, in Germany to DIN-Standards.
Such diesel already contains additives to act as detergent, and the cetane number is sufficient for all modern diesel engines. In other words, the available diesel fuel -at least in western Europe - has been blended with additives as per the specifications of our car manufaturers. BUT: with the introduction of ULSD diesel (ULSD = ultra low sulphor diesel) the lubrication effects of sulphor have been removed, and even the DIN-certified diesel has a big deficit -the lubrication of the high pressure injection pump and the injectors is not any longer ensured. The automobile industry has many years watched this development without acting, as the reliability of the high pressure engine components has shown to be ok for a certain number of kilometers (or milage). However, after a certain running time (around 100.000 km or less) an increasing number of breakdowns of injection pumps and injectors are reported, and slowly, slowly, the automobil industry is recognizing this fact abd have started their own analysis. Tests with adding 2-T oil to the diesel have been internally conducted - but it takes time to complete the scientific proof and argumentation.
The practice of car owners to add the dosis of 2-T oil to their diesel fuel is going on for some years now with very positive results, not only with regard to increased lubrication, but positive side effects have been noticed, such as very good cleaning capabilities of the 2-T oil, considerable reduction of diesel soot in the burning process, and an increase in the Cetan number of the "doped" diesel by 2 to 3 points.
So, quite francly, I see no reason to add anything else than 2-T oil to the diesel to come to the wanted results, and to ensure a long term reliability of the engine compnents.

YF

Hallo YF,
many thanks for your patience and answer.

After some refill with low ash 2-stroke oil I really found the smoothness of the car increased. Less noise, faster in getting speed.

And I expect a general improvement with subsequent refills.

Thank you and warm regards,

Stefano

Just wanted to say - this topic really has gone around the world now! I was encouraged to try adding 2-T oil to my VAG PD 1.9 engine and have done 150km with it. Scary-smooth. Easy starts. I love it.
What is funny is that the diesel available here in Bahrain, Arabian Gulf apparently is still sulphurated - soon to switch over to non-sulphurated. The clatter of the PD injectors (uprated ones) has been quietened by about 40% or more.

Makes such a difference. No cat or DPF to worry about.

Yamaha-fan - viel Dank für das Teilen dieser Informationen! (meine Mutter kommt aus Salzburg!)

Bas

This topic has stirred up quite the discussion on the skoda site: briskoda.

Please feel free to take a look and perhaps post a comment or two.

http://briskoda.net/fabia-i/early-results-...rv/141964/

The discussion seems to be very similar to this one.
It of course is a scary thing to try, especially on a new engine and since I do not have a old diesel engined car I cannot try on any other car.

I might persuade my brother who bought my fathers 12y old astra diesel to try it first.

The thing that is most supporting the idea is that I still have to find one bad comment by someone who actually sais he tried it. The worst comment is neutral at best by someone who used another additive already tough even then it was an slight improvement which tells me it's even better then the original additive (Millers, whatever that is).

Another issue is that these new cars are disigned on current available fuels so why change the fuel?
This is countered by the fact that cars are driven all over the world where fuel quality can be very poor. So engines should be able to handle adding an additive like 2T with no problem. Also dealers seem to add engine cleaninig additives themselves tough only once per many many miles.

In the skoda thread I read someting about PD engine breaking up the molecules of the 2T-oil. Is a FL2 engine a PD-type engine? I'm not an engineer of any kind but I believe PD stand for Presure Diesel working with 2,000BAR (30,000PSI) injectors where as others work at much lower pressure (don't know how much).
I also read that bio-diesel only stays intact below 1.5BAR and 2% is mixed in UK diesel. I also believe to have heard that Europa wants to add 5% in the long term.

Technically there is much discussion, but practally there seems none. I've yet have to find long term experiences by FL2-type engines, so if anyone can report on them I'd gladly read them.

I'm not sure on the warranty issues either. Is it still covered or not? I cannot ask my dealer as he then surely check on it. I also would not expect him to tell yes anyway as he has to cover his own ass if things go bad. Also why should he endorse it if it reduces maintenance cost on which he makes his living on. He surely wont say yes if it's a bad thing to do. So I know what he will say though cannot determine the foundation for his answer.

Still not sure what I'm gonna do with this info. Very keen to try but fear still holds me back, especially if it is not covered under warranty which I'm not sure about.

What to do, what to do....

zone30 wrote:

Is a FL2 engine a PD-type engine? I'm not an engineer of any kind but I believe PD stand for Presure Diesel working with 2,000BAR (30,000PSI) injectors where as others work at much lower pressure (don't know how much).

Ok, thx, no need to worry about that part then

Be using the 2-stroke oil in my diesel for the past two weeks,im noticing a great improvment.
My local shop is selling 2-stroke cheap but it doesnt say if its Synthetic,semi synthetic or mineral, just wondering does anyone know,have added the brand below.
Roan

Carlube 2-stroke Motorcycle oil XL
SPEC: API TC ,JASO-FB

It also says selected from base oils and low ash additives

Well, I did say on another thread (or maybe this one) that I wasn't going to go this route but alas I decidd to give it a go.

Tis early days yet but I can report that I have an increase of approx 4mpg on my regular trip from Aberdeen to Worcester and back and on the return journey arrived back in Aberdeen having used just under 3/4 of a tank of fuel. Trip meter indicats 36.7mpg at a steady 80mph using cruise control which equates to 550 miles to a tank of fuel.

Previous journeys have only given 32.7mpg for the same route and driving style.

Guess that adding 2-T oil is having some effect  ______________________
2011 Full Fat RR 4.4 TDV8
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