Feels like we are getting off topic... The 2019 Sorento V6 hesitates with the same gas that I have been feeding Toyotas and Hondas for the last 15 years. No matter the reason, it should be corrected to work properly on the fuel that they recommended at my time of purchase (which is regular octane, ethanol mix or not). The discussion about ethanol mixtures is a whole other topic, and the fact is, for many of us, it's the only fuel available. Thank you for the recommendation to report to the NHTSA, and thank you to others for making suggestions that might help the situation until a real OEM fix is made.