Finally got out this holiday weekend in some great weather to fire up the Wildcat YS 20/20 fuel. It works really well and I would recommend it to anyone. I ran it on my YS 110FZ and my YS-140L, I could really tell the extra oil helped because the exhaust was not as black as it was with Omega 15% fuel I was using before. Really ran smooth and sounded great. Now if it just did not cost $26.00 per gallon we would really have something to brag about