Many seasoned drivers already know that you should have you automatic transmission serviced on a regular basis. And most longtime car owners know that transmission service includes dropping the pan, replacing the filter, and replacing a few quarts of oil. But there is another type of service sometimes called a fluid exchange. This service involves pumping nearly all of the old transmission fluids out and then replacing them with new fluid. Though most centers don't include dropping the pan or replacing the filter. So which is better, a transmission flush or fluid change? The best answer is actually a combination of the two. During both of these services the technician brings the car in and drops the pan. This gives him a chance to examine any debris in the sump, so the condition of the transmission can be evaluated and replaced. Once the pan is reinstalled they move on to the fluid exchange service, which is better than the old-style service because it replaces more of the old, worn out fluid. Giving your transmission better protection with a new filter and new fluid. You can ask for this complete transmission service procedure at any local automotive garage's, who will understand the benefits of checking the sump and replacing the filter. There's also a good chance that by performing this service regularly once every couple of years you'll never need major transmission repairs.