Webdec 19, 2023 · no, you should not put water in a diesel exhaust fluid (def) tank.

Ammonia is an essential requirement to eliminate nox.

Replacing the def fluid with water will prevent the formation of ammonia, which is essential to reducing nox emissions.

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Weboct 4, 2012 · if you put water in an empty def tank, there will be no urea injected into the exhaust to convert to ammonia.

Webaug 30, 2023 · simply put, no.

Introducing water into the def tank can cause several issues:

In conclusion, def tanks.

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