ayup. There is a benefit.. Just ask your buddy who burnt down his sled.. You mix it yourself, you have an oil/error free factor. The injection pumps can fail. I had one I pre-mixed, it was a pain, but i never burnt it down (93 excter II sx) it screamed at 80:1 around here with amsoil in it. But, I'm not thinking of going back to that on my 02 or 07, no need, I just check it every fall before I hit it.