I just put a reman engine from Promar Engines in my ol' Dodge after the engine shredded itself. What do I do to keep this one from sludging up and going bad? I have lots of faith that Promar did the best they could to fix the problem, however, what can I do. What coolant do you recommend? What oil? I was thinking Pennzoil Platinum Full Synthetic. Currently running Rotella T 15w40 in it. I have only water in the cooling system at this point. Dexcool? The good ol' green stuff? What will make this engine last me 150,000 miles?