Automatic transmission service.

The first bit of information was about having your motor oil changed every 3,000 miles. This is why you see so many quick lube centers around. It is the one best preventive maintance things you can do for your vehicle. Next to it is having the fluid in your transmission changed. Although it is refered to as a fluid it is actually a type of oil. Since oil wears out, trans fluid does to. I recommend having your trans fluid changed every 30,000 to 40,000 miles. If you have not done this even if the millage is higher I would recommend you go ahead and get it done as soon as possible. Personal experience has proven this as I have a 1993 Plymouth Voyager with 179,000 on it with a perfectly operating trans in it that has had the trans fluid changed every 30,000 miles.