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Re: Exhaust Fluid Quality Poor
Posted to Technical Discussion Forum on 1/12/2020 3 Replies

DEF deteriorates over time. It is heat sensitive and can deteriorate within 6 months (or less) when stored at temperatures above 80oF. At lower temperatures, the shelf life is much longer (up to 2 years). DEF should be tested whenever diagnosing problems that ... Login to read more.

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