Diesel Particulate Filter cleaning solutions
My diesel SUV has just returned from the shop with a new DPF as the new one plugged up at 42,000 miles. This filter is plumbed right off the turbos and requires that a lot of the car is disassembled ...
Forum Discussion
spoon059 wrote:mkirsch wrote:
Seems counterproductive to me to have to "drive it like I stole it" all the time, because that kills the fuel economy.
You don't need to drive it HARD, but its bad to drive them leisurely at low speeds most of the time. Just getting out on the highway for extended runs occasionally will get temps up enough to clean out soot.
DPF is a particulate filter, it collects soot, that is the black smoke the older trucks were known for. If you look at the exhaust tip of a truck with a working DPF system you will notice they are nice and clean, no soot buildup.
DEF is used in a SCR system Selective Catalytic Reduction.This is sprayed into the exhaust stream as needed (based on temps and other sensors), often more so when towing. It helps convert NOx to N2 and H2O.
They are two completely separate systems, that really have limited shared interactions.
