Hi,
I asked my supplier about his heli fuel content and he told the following :

20% - KL200 synthetic
20% - Nitro
60% - Methanol

is the KL200 consider as a good oil ? i want to use it on my YS-110 engine.

Shlomo.

Shlomo,


Klotz, the manufacturer of this oil does not think it is very good.

Please read the [link=http://www.klotzlube.com/tech/KL-200.pdf]KL-200 tech sheet[/link] and the [link=http://www.klotzlube.com/tech/BC-175-1.pdf]BéNOL tech sheet[/link], to understand the difference.

If you asked about the Sachs Aerosynth II/III/Aerosave, or the CooperFuels synthetic lubes, my reply would have been quite different; at least from the lubricity aspect.

Very good post. Users of the oils should note the mix ratio of various engines. Capt,n

Dar, I don't understand your response. It seems Klotz thinks there oil is pretty good otherwise they wouldn't be selling such oil? Film strength is a little lower but there are no ASTM tests to qualify a two stroke oil in this regard. If KL-200 is not good then one would assume that all model engines should be just fine with [link=http://www.klotzlube.com/tech/KL-102.pdf]Klotz R50[/link] but nobody uses it. Ran it in some four stoke diesels because it blended with kerosene and provided the properties I was looking for. Oops, R50 is not suitable for methanol.

http://www.aerosynth.de/pages/pdfs/ASynthEng.pdf

http://www.aerosynth.de/pages/pdfs/ASaveEngl.pdf

This data sheet says nothing about the characteristics of the oil, whatsoever. edited to add the following: I did find a viscosity plot of the AeroSynth 3. It is very interesting that AeroSynth has higher viscosity than castor oil above 100°C. now if only this oil was easy to get in the US.

Compare to this data sheet for another one of their oils.

http://www.aerosynth.de/pages/pdfs/Comp2Plus_Engl.pdf

Now, I know these oils are spoken of highly, but how does one gather than KL-200 is inferior from a data sheet.

Dar, if you have experience with both oils and think that one is truly better I'd like to hear about it. The more I look, the more oils I find, many of which are very hard to find in the US. Klotz is well known, as are the standard Shell, Castrol, Valvoline, Amsoil, Penzoil, Redline, but few are suitable for methanol. Some of the major brand products are not available is certain parts of the world. Recently I found Motul Micro(no data sheet available, but for model engines specifically), ELF, and a couple others. Some companies don't even publish specs and are averse to sharing them. Blendzall was not interested in sharing specs on the various castor oils they sold.

Kl-200 has been their standard oil for alcohol fuels since the 1970s. Its easy to find, competitively priced, and works well enough. You can always add castor for overheat protection.

Thanks, Dar i didn't understand what information
i should notice in tech sheet.

please explaine

Shlomo

I am currently using the Byron 20% / 20% pure synthetic i have no clue what type of
oil Byron use.

Greg,


Two words: Lubricity (film strength) and RPM limitation.

Their castor oil excels, yet their KL-200 is just mediocre.


Also, please see the flash point (high temp protection)...
According to the MSDS it is even lower than in the tech sheet!


Take note of the above, Shlomo!

Gilad Olinki can bring you anything from Klotz and probably has the stuff for immediate delivery.

I'll sms his number to you.

Hi Dar,
460F = 237C, what do you consider as respectable flash point for pure synthetic oil ?

Shlomo.

Shlomo,


For synthetic oils this is about tops... Even the Sachs oils and Cooper's can't do any better.

But the [link=http://www.klotzlube.com/tech/MSDS%202004%20KL-200-1.pdf]MSDS[/link] (not a Klotz publication...) says it is lower; 370ºF-445ºF.

BéNOL is much better, according it its [link=http://www.klotzlube.com/tech/MSDS%202004%20BC-175-1.pdf]MSDS[/link] at 555ºF


This temperature sensitivity is a given, but the lubricity can be better. For Sachs and Cooper's, it actually is much better...