Are you driving a EURO4, EURO5 or EURO6 Emission Standard Diesel Vehicle with Diesel Particulate Filter (DPF) or Diesel Particulate Diffuser (DPD)? It is a good system that removes harmful Nitrogen Oxides (NOx) from your vehicle exhaust, but it also poses a problem(s) for vehicles driving in city traffic. Read on to find out how the problems can be resolved with AceRev DPF Cleaner.