CONSUMER REPORTS: Costly car mistakes

DENVER - Consumer Reports has spoken to automotive mechanics across the country who have told scary and costly stories. Routine maintenance and early fixes when something starts to go wrong can save you plenty.

• Exhibit A: A transmission rebuild. That can cost you about $3,000! If your transmission fluid is too low, it's probably because of a leak. If you do have to add fluid, don't overfill. That'll make it worse!

• Exhibit B: An engine replacement, a $3,000 to $6,000 job! To prevent that, check your oil level once per month. And remember to change your oil and the timing belt according to the maintenance schedule in your owner's manual.

• Exhibit C: A new catalytic converter that can cost $900. A catalytic converter can become overtaxed if your engine isn't tuned and starts to malfunction. So don't ignore that "check engine" light when it comes on and make sure you get regular tune-ups!

Bottom line, catching car trouble early can spare you expensive repair bills down the road. Refer to your owner's manual to see when you should take your car in for maintenance, including oil changes, tire rotations, and tune-ups. And it can help to put reminders on your calendar to schedule an appointment at your garage.

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