Shell Develops Non-invasive Video Engine Diagnostic Tool

Oil analysis and other diagnostic tools give truck owners a good idea of the overall health of their engines. But sometimes in the past the only real option to get to the bottom of a problem was to tear the engine down – a lengthy, costly process. Not anymore.

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http://www.landlinemag.com/todays_news/Daily/2009/Sept09/092109/092409-04.htm