RE: Extreme Flight 88" Yak - Build and Fly
No Brielli. I have DA, Zenoah and 3W.
DA actually reccommends the Amsoil. ZDZ reccommends a synthetic lube at 40 or 50 to one depending on the engine. 3W also reccommends a "Fully Synthetic" after engine break in at 50 to 1.
The Opti Lube, Amsoil and Pennzoil all are tested in standard industry tests. Amsoil has passed all three industry tests ISO-L-EGD, JASO FD, API TC the other guys list one or the other in the same category.
All info from respective websites