Every manufacture recommends different service intervals, even within their different models. It's always best to follow their recommendations, since they spend billions of dollars every year in research and development.
But from my experience as a mechanic, the older your car gets, the shorter you want to make those intervals. Because as the internal components of transmissions and engines begin to wear, they produce deposits of metal and carbon that builds up more and more over time. Putting in fresh fluids is what "washes" these deposits away, and provides a new film (Lubricant) between these parts that will help them wear longer.
And it all depends on how much you care about your car. Ever notice how people who love their cars take good care of them, and they run and look like brand new even 20-years later vs. People who dog their cars out and never do anything but get in them and go? Well, those people are the ones who drive down the street belching black smoke with their mufflers hanging on the ground.
My point is, the more frequent you change your fluids and tune your vehicle, the longer it'll last.
And finally, anytime you have a transmission flush, or oil change, it must include a filter as well. Because all of those deposits I spoke of earlier are deposited in the filter. Not changing your filter is like taking a shower and putting on the same dirty clothes. Make's sense?
Thursday, January 7th, 2010 AT 12:39 AM