Reviewed By Mark H (Mableton, GA) Reviewed for a 2007 GMC Yukon —9/26/2016 4:30 AM
No issues. Simply plug the device into the OBD2 port. A few light flashes then it's done. According to the display the vehicle is in V8 mode all the time. Have not used it long enough to know impact on fuel or oil consumption. Oil consumption is the reason I decided to try this.