Had Costco 91 gas with stabilizer sitting in the car. I was skeptical about the gas to begin with. Car had a hard time starting after I took it out of the garage. Finally burned that crap off and pumped Shell 91 V Power. The one time I pump Costco and bleh.
Strange, the other vehicles that I have take Costco 91 gas without fuss. Oh well, the Z gets what the Z wants
