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cjohnsonSep 9, 2025
Why is the exhaust gas from my MTU Engine blue?
- MMichele MooneySep 9, 2025
If your MTU Engine has exhaust gas that is blue, it may be due to too much oil in the engine, or a clogged oil separator or oil preseparator of the crankcase breather. Drain the engine oil. Clean the preseparator. Replace the filter element of the oil separator.