Hello from Argentina!

[facthunter]

From what I have researched I would NOT run an outboard engine oil in a Rotax. I would contact Rotax directly. Some oils change specs in different countries even though they share a common name. TCW-3 has nothing to do with what the motor needs. I was under the illusion years ago, that outboard oil would be alright, but not so. Fortunately I never got around to using or recommending it. Just because someone has been running his engine for a while on anything doesn't mean much. Pennzoil USA did a long test on an oil they had formulated and have recommended it for aircraft. Very few oil companies will do that. I think SHELL have one too but again the 582 is recommended to use the aircooled engine oil, by Rotax. Nev

 

 

[Lucas Di Pentima]

Thanks Nev, I asked because this oil also comply with the API-TC spec, that is (as far as I know) for air cooled engines. Searching on the web i've found not many but some forum posts about the usage of this oil for ultralights and got some positive experiences, but nevertheless I wanted your opinion. Here are some of my findings:

 

http://www.rotaryforum.com/forum/archive/index.php/t-21802.html

 

http://www.ul104.eaachapter.org/rotaxrickengineinfo.htm

 

 

[facthunter]

Rotax Rick recommending TCW-3? I think you will just get confused going on those sites. the Pennzoil TC premium seems a safe thing. Try to run your question right to Rotax and allow for the variation in some countries. The hard carbon formation in the ring grooves is the thing that will cause engine failure, and sometimes that is so hard that you are better to replace the piston assembly than try to remove the carbon without damaging the piston. Nev

 

 

[Lucas Di Pentima]

Hi Nev!

 

Yes, I know that Pennzoil TC is the best, but here in Argentina is not being sold (the entire Pennzoil brand doesn't exist here) so I'm trying to get some other good oil that's available here.

 

You or Maj told me that the Castrol 2T red was a good one too, on other posts I read that the Castrol is the Activ 2T, and searching here I have found the Castrol Actevo X-Tra 2T, this one is semi synthetic instead of mineral as the Castrol Activ 2T, could it be OK too? It complies JASO FD, API TC and ISO EGD standards.

 

Yesterday I sent this question to Rotax via the website http://www.rotax-aircraft-engines.com/ contact form, I'm still waiting for an answer.

 

Best regards

 

 

[facthunter]

Generally synthetics are not required in this application They don't provide as much rust protection in little use operations but a semi or synthetic technology might be OK. See how you go with Rotax. Some good oils hardly deposit carbon at all, though some of the "carbon" is dust that gets through the filter. Nev