Prices for diesel exhaust fluid (DEF) inched up slightly, according to data tracked by Integer Research, with U.S. DEF bulk prices trending upward back in November as feedstock prices for urea – the ammonia-based component of DEF – rebounded for the first time since April this year. Integer noted that the national average for tote refill prices increased by one penny in the U.S. to $1.88 per gallon, while decreasing by one cent in Canada to CAD 54 cents per liter, roughly ...

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