While browsing at Lowe's, I found the Pro-Mix Premium 2 Cycle Engine Oil. A brightly colored star states "Safely replaces all mix ratios". Instructions are to mix 2.6 oz. with a 1 gal of fresh gas. Label also states that this can be used for 50:1, 40:1, 32:1, and 16:1 ratios. Question: Does the mixing of this 2.6 oz to 1 gal really replace all the mix ratios mentioned? I went ahead and mixed the stuff with a gallon and ran my 70cc motor with it for 2 weeks now and the bike runs really well and doesn't seem to have any issues.