7/26/2023 0 Comments Cummins insite fuel percentage![]() ![]() ![]() This has a level sensor and a quality sensor to make sure the concentrations are in allowable limits. What components make up the emission system that controls the 5 MPH derate?ĭEF Fluid – The tank with the blue cap holds DEF Fluid. However, when it’s a specific 5 MPH derate then you can be certain that the problem is related to the emissions, aka the aftertreatment system. A derate can be caused by various sensors or systems. A derate is designed to protect you from causing engine or DPF damage. ![]() What is a DEF derate or an aftertreatment derate?Ī derate means that the program inside the engine computer limits either the power or vehicle speed. Find the right product for your trucking needs Take the quiz ![]()
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