Car encyclopedia

120,000 Mile Service

For many vehicles, the 120,000 mile service is a major service, identical to the 60,000 mile service.

What to Expect

  • This service generally involves the replacement of fluids like the automatic transmission fluid (and filter,  if equipped), engine coolant, and differential fluid.
  • Some vehicles will require replacement of the timing belt and/or a valve adjustment
  • Some vehicles will require replacement of the spark plugs
  • A more comprehensive checklist of inspections may also be included. Each shop and vehicle manufacturer may vary the actions performed, so be sure to refer the maintenance schedule in your owners manual.
  • If this service is performed at the dealership, they should also take care of any necessary recalls. To check for recalls, click here.

Additional Repairs That May Be Necessary


Service intervals may vary between auto manufacturers. Please consult your owners manual for service information related to your specific vehicle.

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