It doesn't use DEF but still needs to clean the particulate filter. The DEF is only for NOX emissions as far as I know, it doesn't help to clean the filter. Like I said, it should all be in the owners manual.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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