I have a 2000 maxima with 78,500 miles on it. What things should I replace or tune up. I changed the spark plugs not too long ago and I have a K&N Filter on my cold air intake. What about the timing belt or any other stuff. Trying to get the best performance out of the car, it runs great I was just looking for some things that maybe needed replaced at a certain mileage.
A chemical you pour into your intake and its supposed to clean the inside of the plenum and other stuff inside the engine. Lots of ppl claim it hurts their motor some claim it helps, i havent tried it.