Exhaust Practice Test
Exhaust Diesel Exhaust & DPF Systems 2
What is 'ash loading' in a DPF system, and how is it managed?
Select your answer
A
The accumulation of incombustible metallic ash from engine oil additives, removed by periodic DPF cleaning
B
The buildup of carbon soot on the DPF substrate, removed by regeneration
C
The coating of the DPF with DEF residue, removed by high-temperature purging
D
The accumulation of fuel additives on the DPF walls, removed with chemical cleaning
Hint
