I have just read the user manual for my 1998 Firebird (LS1) and it states that I should be using DEX-COOL coolant.
I would like to give my radiator a flush but I need to know what coolant I should use.
I want to stick with what the manual recommends, however, it does not seem to be available here...? Or do I need to get it from a GM dealer? If I can't get it, can anyone 100% confirm what coolant I should be using?