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Check engine light + DPF light perma-on...Turns out the idiots at the shop over filled my TDI by 3+? quarts : r/tdi
How long does it take for a diesel particulate filter (DPF) to block short distance city driving? - Quora
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Dorman 674-1003 Diesel Particulate Filter (DPF) for Specific Dodge / Ram Models (Non-CARB Compliant) Fits 2007 Dodge Ram 2500 - Walmart.com
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