Dear craig with all due respect I believe your comment to be inaccurate. Even John Murray commented on the 26E news group that he had imported a case of oil for his new 29Es, since the factory recommend oil was not available in the US anymore.

On Thursday, October 15, 2015 at 7:38:16 PM UTC-7, Craig Reinholt wrote:

The referenced thread is specifically for gliders using the Wankel Austro AE 50 engine variations. It has no bearing on or reference to the Solo 2350 engine.
Please do not make any assumption that oils for these 2 engines are compatible, let alone interchangeable.