I paid 49.95 today for a full synthetic oil change at a Chevrolet dealership. first oil change in my 2014 Chevy cruze eco with 1.4 liter turbo. starting temps in Michigan this year are currently at or near zero. what synthetic oil do you think I got? I know they used to use Mobil 1 but I could never really see it on the stick. This oil is clean but much thicker almost green in color. Did I get the GM Dexo? I hate having dealership oil changes . At least at a quick lube I can watch them dump in whatever oil I bought.