Just curious, of the 2011 V6 Equinox owners, how many read the owners manual to discover that the V6 engine requires " dexos " motor oil? What is dexos motor oil? Did you go to a lube/oil change business and just request your usual brand of oil? wwwdotgmdexosdotcom Gm certified technician does state that Mobil 1 does exceed gm dexos specifications. According to the owners manual, "use of non dexos oil" may void warranty.