Wildcat is the best. You can get away with no after run oil. I do use after run oil. All of my engines that were only run on wildcat look like brand new on the inside. I run their 10% premium extra in all my 2 stroke airplane engines from OS 40 FP to OS 160 FX. I run 15% 2/4 stoke in my 4 stokes from Saito 65 to OS 300 Gemini. Lastly I run the Curtis Blend 30% in my Raptor 50.

This is the only fuel I buy!! Prices are $12.99, $13.99 and $19.99 respectively per gallon.