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The American Petroleum Institute has launched a new page on its website to provide vital information about diesel exhaust fluid (DEF) related to purchasing and storage.
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If the diesel exhaust fluid has been stored in the vehicle over the past 12 months, the American Petroleum Institute recommends that it be drained and replaced.
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For vehicles being put back into service after a prolonged period — particularly in wintertime — fleets should follow these best practices when replacing diesel exhaust fluid (DEF) and engine oil to avoid mechanical issues and keep vehicles running smoothly.
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