2014 ST3. Garrett Powermax turbo, Thermal Turboback, CPE intercooler, JBR intake, Innovative RMM
I guess this happened at the beginning of covid. ZZP released a statement to it's customers warning them about the potential engine damage due to running the winter blend in warm monthsalso remember that when there are fuel shortages sometimes states authorize the use of "winter fuel" in the summer. So i wouldn't be surprised that even if you do get premium fuel if it isn't performing up to normal standards.