Wednesday, April 30th, 2008 AT 7:33 AM
I have a new mazda 2007 CX7, 4cyl with turbo. I was only using regular gas, says that I should use premium, but have had the vechicle for a little more than 2 months and I'm just starting to notice a skipping feeling when I go about 55mph. This morning, my check engine light came on. I was wondering if I start filling up with premium, will the light and the skipping go away, or do I need to take it to the dealership?


