Diesel Exhaust Fluid (DEF) is a solution used in Selective Catalytic Reduction (SCR) systems to reduce nitrogen oxide emissions from diesel engines. A DEF level gauge provides an indication of the amount of DEF remaining in the vehicle’s tank. Some vehicles, particularly older models or those with smaller DEF tanks, may not be equipped with such a gauge, relying instead on warning lights or messages when the DEF level is critically low.
The presence of a DEF level gauge allows for proactive management of DEF levels, preventing potential operational disruptions. Historically, the absence of such a gauge could lead to unexpected vehicle downtime if DEF levels were not regularly checked. This could impact delivery schedules and increase operational costs. Modern vehicles, especially those used in demanding applications, generally include DEF level monitoring to improve efficiency and reduce the risk of running out of DEF.
