Tenacious
Active Member
- Jun 28, 2010
- 152
- Boat Info
- 2005 420/455 DB
Raymarine E125/E127
Highfield 360CL 25HP Yamaha
- Engines
- Cummins 480 CE
What is the consensus for Onan 9kw genset oil? SAE 30 or 15W-40? I believe manual may recommend 15W-40, but I do not have it in hand at he moment. Thanks.
UPDATE:
Service manual specs attached. SAE30 is for 32F and up. 15W-40 allows for temps down to 10F with the same max temp ceiling. My local mechanic chooses SAE30 for whatever it's worth. Primary reason for my asking was that SAE30 was not readily available from sources I went to and I wanted to service genset before 2 week trip.
UPDATE:
Service manual specs attached. SAE30 is for 32F and up. 15W-40 allows for temps down to 10F with the same max temp ceiling. My local mechanic chooses SAE30 for whatever it's worth. Primary reason for my asking was that SAE30 was not readily available from sources I went to and I wanted to service genset before 2 week trip.