Fuel mileage, how much diesel exhaust fluid use, and a tutorial on how to check DEF (diesel exhaust fluid) level in the Jeep Wrangler Diesel using Four Wheeler of the Year 2020 Wrangler Rubicon ...

TORONTO, Ont. -- Brenntag is advising fleet owners to periodically test the quality of their diesel exhaust fluid (DEF) using a combination of three testing methods.

Diesel Exhaust Fluid (DEF) is made from a mixture of technically pure urea and purified water and must be handled and stored properly to preserve its quality. This is true for drivers filling up ...

Fleet managers and truck drivers both need to understand that the quality of the diesel exhaust fluid (DEF) going into their vehicles is as important as the quality of the engine oils or fuels ...

The incorporation of DEF quality sensors could be a suitable option and the EPA believes that urea quality sensors can be installed on new vehicles by 2016. A copy of the letter is on the EPA website.