I just purchased a 1989 sedan deville with 111000 on it. The body is in perfect shape for being a northeast car. The last owner owned it for 21 years. I am trying to do all the fluids. There seem to be differing points of view as far as the cooling system. Do I: Just drain and refill? Drain and flush? Drain and flush with a flushing chemical? Is tap water ok, or does it need to be distilled? Green coolant? Tabs I am assuming need to be put in, how many, and do I just put them into the radiator as a whole tab or do I grind them up and put them in the upper hose?
Also, while I am at it, do you recommend a transmission fluid and filter change? Thanks in advance!!!
Also, while I am at it, do you recommend a transmission fluid and filter change? Thanks in advance!!!