Cummins/Onan FM-JFE2 — Cold Weather Crankcase Preparation
Maintenance
For the Cummins/Onan FM-JFE2, from the Cummins/Onan service manual.
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Before you start
- Oil must be warm before being drained
Procedure
- Run plant until oil is warm and drain oil.
- Mix 5-1/2 quarts SAE 10 with 1 pint kerosene or suitable diluent.
- Fill crankcase.
- Start plant and run for at least 10 minutes.
- Do not use heavier oil or kerosene only.
- Drain oil after 40 to 50 hours and replace.
Specs & values
- 5-1/2 quarts SAE 10
- 1 pint kerosene
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.