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Passive regeneration is the third process in which the raised temperature attained durring normal running is high enough to burn off the excess soot in the DPF.
The following examples (2 different engines) show this can occur in Ducatos but the effect is slight, eg 1-2%

Engine J1 DPF temps Passive Regen 2 250213.jpg
Engine J1 DPF temps Passive Regen250213.jpg
Engine X DPF Passive Regen temps 2406.jpg
Engine x DPF temps Passive Regen.jpg



Additional examples of regens engine J and X have V32

Engine X DPF Regen temps 250529.jpg



Engine X 230623 regen.jpg
Engine J1 Regeneration temp 230301 C-FP.jpg





Engine J1 Regeneration 230301 2.jpg


Engine A V28

Engine A Regeneration Taking place Oct 23.jpg
Engine A CAT DPF temps 240729-Northampton-1.jpg
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  • Engine X DPF Regen temps 250529.jpg
    Engine X DPF Regen temps 250529.jpg
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  • Engine J1 Regeneration 230301 C-FP.jpg
    Engine J1 Regeneration 230301 C-FP.jpg
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  • Engine A CAT DPF temps 240729.jpg
    Engine A CAT DPF temps 240729.jpg
    75.6 KB · Views: 7