Coolant flush, what coolant to put back in
After reading lots of different information, I have come to the conclusion that I should refill my 1997 7.3 with motorcraft green vc5 coolant and add two or three bottles of vc8 additive. Does this sound correct? A reputable diesel shop nearby swore that I would be ok using an ELC coolant without sca for my year 7.3 but I have read about injector cup issues caused by this. Options?