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Cummins/Onan 5.6TGHAA11381C — Checking Engine Oil Level

Maintenance

For the Cummins/Onan 5.6TGHAA11381C, from the Cummins/Onan operator's manual.

Applies to: Cummins/Onan TGHAA

Before you start

  • Crankcase pressure can blow hot engine oil out the fill opening causing severe burns. Always stop the genset before removing the oil fill cap.

Procedure

  1. Shut off the genset.
  2. Remove oil fill cap/dipstick, wipe clean, screw back on, then remove again.
  3. Check oil level on dipstick.
  4. Add Mobil 1 Formula 15W-50 synthetic motor oil or equivalent until full mark.
  5. Do not fill above full mark; drain excess if overfilled.
  6. Screw oil fill cap on securely.

Specs & values

  • Mobil 1 Formula 15W-50 synthetic motor oil or equivalent
  • Oil capacity 3.3 L (3.5 quart) with filter

Full service-parts list: Cummins/Onan TGHAA →

Source: Cummins/Onan operator's 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.

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