Saves on engine wear and tear.

节省了发动机的磨损。

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The main cause is the engine wear and the combustion chamber caused by carbon.

其主要原因是发动机的磨损和燃烧室的积炭造成的。

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More potent fuels will give noticeably more power but may result in increased consumption or engine wear.

更强力的燃料可以带来更强的动力，但是也会更易消耗并且会带来引擎的损耗。

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It's just hard to score in the luxury market when you refuse to do an eight-cylinder engine, wear undistinguished styling and don't offer a rear-wheel-drive car.

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