Alright guys i got bad news the other day, the orange wrench showed up on my dash while i was on a trip and after reading on here and useing my cts i figured it was my oil cooler. So i figured i might as well do studs too. Heres my thinking. I am ready to change my first coolant filter at 500 miles, then flush the coolant system (switching to ELC) Just fill it with water and drive it to the shop they will do the cooler and studs then fill with correct coolant. Does that sound like a good idea to you guys. And I know its been discussed but should i go with the bpd oil cooler? or by changing the coolant will that solve the issue?