Home›Repair guides›Cummins/Onan›Crankcase Oil Change

Cummins/Onan 6.0 NH-1R/9500 / 6KW Power Drawer — Crankcase Oil Change

Maintenance · Oil pan

For the Cummins/Onan 6.0 NH-1R/9500 / 6KW Power Drawer, from the Cummins/Onan service manual.

Browse Cummins/Onan generators & specs →

Before you start

  • Do not overfill crankcase. Do not use service DS oil. Do not mix brands nor grades of motor oil.

Procedure

  1. Remove oil drain plug on oil pan.
  2. After oil drains, replace plug.
  3. Refill crankcase with 4 quarts (4-1/2 with filter change) of detergent oil.
  4. Use only when engine is warm.

Specs & values

  • 4 quarts
  • 4-1/2 quarts with filter change

Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

More Cummins/Onan repair guides →