3rd Gen High Performance and Accessories (6.7L Only) Talk about Dodge/Cummins aftermarket products for third generation trucks here. Can include high-performance mods, or general accessories. THIS IS FOR THE 6.7L ONLY!

Defuel???

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Old 05-11-2016, 01:47 PM
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Defuel???

I keep hearing the term "defuel Levels" with the tuners, what does this mean?
Old 05-11-2016, 03:37 PM
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Maybe someone else has a better explanation (I hope).

Defueling is when certain set parameters are exceeded and the computer/program cuts fuel back. Fuel is what controls many things in a diesel and is related to heat and pressure. Usually these programmers, and the use of the trucks, are pushing limits and defueling is a safety release so to speak to keep from damaging things when pushing hard.
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