Alright so im doing a turbo and head studs and injectors on my 2015. Drained the coolant out. What type of coolant should I put back in it? thanks in advance

 

Factory specification, or a Global type would be my recommendation. As long as the back of the jug says its compatible, your good to go.

I have heard the "old school" green coolant isn't compatible with aluminum or some EGR coolers. So far, my 2007 GMC TopKick isn't minding it!