Singapore’s also tightening emissions rules and fuel standards mean modern diesel vehicles increasingly rely on Diesel Particulate Filters (DPFs) to meet Euro 5/Euro 6 emission targets. That’s great for air quality — but it also raises maintenance needs for fleet owners. This post explains the rules, the technical impact on DPFs, and why professional DPF cleaning from Scantruck can save downtime, reduce fuel use, and avoid costly repairs.