Cummins/Onan C2750 D5 / QSK60 — Engine Oil Level Check
Maintenance
For the Cummins/Onan C2750 D5 / QSK60, from the Cummins/Onan operator's manual.
Applies to: Cummins/Onan C2750 D5, Cummins/Onan DQKAN, Cummins/Onan QSK60, Cummins/Onan QSK60 engine, Cummins/Onan QSK60-G19 engine, Cummins/Onan QSK60-G22 engine
Before you start
- Crankcase pressure can blow out hot oil; do not check oil while running.
Procedure
- Remove the dipstick and wipe it clean with a lint free cloth.
- Fully replace the dipstick.
- Remove the dipstick and check oil level against the High and Low marks.
- Top up to the High mark with the correct grade of oil.
- Replace the dipstick and oil filler cap.
- Start the engine, idle for five minutes, switch off and wait five minutes.
- Check oil level and repeat if oil needs to be added.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Do not operate with oil level below L mark or above H mark
Full service-parts list: Cummins/Onan C2750 D5 →, Cummins/Onan DQKAN →, Cummins/Onan QSK60 →
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.