INCOMPETENT & UNPROFESSIONAL

Should be zero stars for Chevrolet of Huntington Service Department, specifically the Service Manager, Greg Katehis. He voided my warranty at 10k miles without showing proper cause. ..The pump gasoline in NYS is now mixed with ethanol, a known hazard to Chevrolet catalytic converters yet they refuse to admit. Wants to charge me $5,200 instead (and I also paid $3k extra for extended warranty). I love my Chevy Corvette ZR1 but this guy needs to go.