"Customers of a New York Costco think their vehicles were erroneously filled with
E85 ethanol fuel mislabeled as 93 octane. Costco says it's bad gas, not
E85, but is still paying to repair damaged cars"
Why You Shouldn't Buy Gas From Costco: Reason #3267 - E85 - Jalopnik
&
Bad Gas Mix-Up A Nightmare In Rockland - wcbstv.com