Two critical elements that need to be checked out at 100,000 miles are the EGR valve and the DPF. Hasten says to run a computerized flow test on the DPF filter tol show if the filter in the exhaust ...
The role of a DPF, or diesel particulate filter, in a modern automobile is an important one. As the name implies, the DPF works to filter out particulate matter in diesel vehicles — more specifically, ...