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TEL Recommended Maintenance Intervals - International with Cummins Engine:

  • Grease job every 20-25k

  • Full oil change every 50k with 10w30 semi-synthetic oil - TEL recommends Rotella t5

    The above intervals are per the manufacturer; oil changes can be done sooner, if you prefer.

  • Replace the Davco fuel filter as needed.

  • Replace the fuel filters on the engine every oil change.

  • Replace the engine air filter every 90-100k miles.

  • Replace the cabin air filter as needed. If you have a pet, this will need to be changed more often.

  • Air dryer Coalescent filter must be replaced every 150,000 miles (the International filter must be used). Failure to replace this can cause emission system related issues.

  • Drain your air tanks daily to prevent moisture build up in the air system which can damage emissions and transmission components.

Download the X15 Maintenance Interval Reference sheet