ORIGINAL: yungman
The toallity of all the posts lead me to draw conclusion that most oil work, most ratio within reason is ok.
That is about the best statement I have seen regarding oils. As far as ratios go, the only work I have seen really is the Jennings one that showed more oil made more power. Period. Makes more gunk as well, but his results were very clear.
Use ANY quality oil, use enough of it, keep it a bit rich and go fly. Then say goodbye to oil related issues.
Mark