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Service Interval Adjustment

Adjust the manual's oil interval for load factor, dust, heat, and fuel quality instead of guessing.

Inputs

Inputs and assumptions

Loads below roughly 30% are the hardest on oil.

Result

Adjusted service interval
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Adjustment applied
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Equivalent calendar interval
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Services per year
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What to check

  • Oil analysis results from this unit
  • Engine manual adjustment factors for severe duty

Related calculators

Maintenance figures are planning estimates. The engine manufacturer's service schedule, the adopted editions of NFPA 70 and NFPA 110, and the local jurisdiction's amendments govern what you must actually do and document.

Saved calculations

Keep the assumptions with the result.

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