50/1 is fine for a good SYNTHETIC OIL and may be ok for some synthetic blends but I wouldn't bet my motor on it especially since the blends don't tell you how much synthetic they blend with their natural (dino) oil. Synthetic oil holds up much better to heat than natural oil. No natural oil that I know of is designed to hold up to the heat that could be generated by running a motor wide open on a 50/1 ratio (more oil helps the motor run cooler). Oils are not the same they are a complex mix of various ingredients designed to meet various goals and should never be mixed at higher ratios than the oil manufacture designed them for.50:1 is good enough if you use a quality oil.
Just in case you're not aware you need to use a synthetic oil designed for premix 2 strokes. You can use more oil e.g. 40:1 but I can't tell the difference and I prefer to have as little smoke as possible. I know others think differently because I often find myself sat on a start line choking & eyes streaming!
50/1 is fine for a good SYNTHETIC OIL and may be ok for some synthetic blends but I wouldn't bet my motor on it especially since the blends don't tell you how much synthetic they blend with their natural (dino) oil. Synthetic oil holds up much better to heat than natural oil. No natural oil that I know of is designed to hold up to the heat that could be generated by running a motor wide open on a 50/1 ratio (more oil helps the motor run cooler). Oils are not the same they are a complex mix of various ingredients designed to meet various goals and should never be mixed at higher ratios than the oil manufacture designed them for.