When Should You Avoid Changing Transmission Fluid in Your Vehicle?

Learn when it's risky to change transmission fluid and what to consider for your vehicle's health.

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You should not change transmission fluid if your vehicle has over 100,000 miles and the fluid has never been changed. In such cases, the new fluid can loosen deposits and cause slipping or transmission failure. It's best to consult your vehicle's manual or a trusted mechanic for advice.

FAQs & Answers

  1. What happens if I change transmission fluid over 100,000 miles? Changing transmission fluid over 100,000 miles can loosen deposits, leading to potential transmission issues.
  2. How often should I change my transmission fluid? Generally, it is recommended to change your transmission fluid every 30,000 to 60,000 miles, but consult your vehicle's manual.
  3. Can old transmission fluid cause problems? Yes, old transmission fluid can lead to overheating and slipping, which may result in transmission failure.
  4. Should I consult a mechanic about my transmission fluid? Yes, it's best to consult a trusted mechanic if you're unsure about changing your vehicle's transmission fluid.