Honda Z is the transmission fluid used for non CVT transmission. Regular transmission fluid change would keep the trans going but with age, there is no telling as seals woud age over time and hardens resulting in pressure loss.
The radiator leak is something you cannot ignore as overheating would cause damage to the engine. Have the timing belt checked as you have just bought the car and do not know the history of it. Ensure the belt condition is still good.
Rear main seals if not leaking too badly, it can wait but would require the transmission to be removed to replace.
Exhaust leaks would result in noise pollution and higher fuel consumption. If leak is along pipes and the pipes are not badly corroded, some patching up would do, otherwise parts would have to be replaced.
Ball joints would cause abnormal tires wear and is a safety concern as it can affect steering accuracy so should be attended to asap.
Monday, January 17th, 2011 AT 12:44 PM