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Detroit 60 engine oil in fuel filter?
Sorry to be late to the party, But: Pull the return to tank line and run it into a clean bucket. Run the engine for a few minutes. If you have oil traces, then it is getting into the head passages through: a casting porosity, a loosened internal plug, a leaking small gasket. (The...- mizlplix
- Post #3
- Forum: Everything Big Diesel Powered
