Quote Originally Posted by MPG View Post
We have a 2006 Aveo Sedan LS and we had the same problem when we filled up with McClure gas. Our Check engine light came on and it was the 02 sensor so i ran the tank almost empty and fiiled up somewhere else and a day or so later it went off. About six months later (with no light) i tryed filling up with McClure gas again and the same thing happend, CEL for 02sensor so I stopped using McClure gas. Everythings been fine since, my advice is just leave meijer gas alone lol idk why but all that mattered to me is that it worked.
Yes I had an engine light appear after filling at a certain station as well on a 1996 chev 4x4 extended cab...the after cat o2 sensor eventually failed and after new one was installed I could fuel anywhere...so you may have a sensor on the verge of crappin out