I run a commercial grounds maintenance company (25 years) and I’ve ran Opti-2 In every piece of equipment we own and never have had an engine failure. You cannot beat the 100:1 mix in one gas can for all your mix ratio equipment. I bought my first T-27 weed eater almost 20 years ago and I still have and run it today, it’s only ran on opti 2. If that’s not enough proof to make you buy this product then you need therapy. If you are one my competitors disregard all the above, I always see your trucks parked at the mower fix it shop.