To keep the inside working parts of your engine clean, use engine oil and fuel that have tested engine cleaning properties.

为保持引擎内部工作部件的清洁，使用经检测具有清洁引擎性能的机油和燃料。

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Excellent dispersancy and detergency keeping the engine clean and thus preserving its power.

卓越的分散清净性，保持发动机清洁并有效保存动力。

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Armed with the best microelectronic technology the humble engine can be clean and efficient and above all tolerant of the fuels it consumes.

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Many seller of flooded cars will steam clean the engine compartment but usually forget to wipe down afterwards.

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That could reduce the cost of clean diesel engine technology in the future.

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