Real-time on-road oil consumption measurements for a commercial heavy-duty Diesel engine

Oil consumption rate is a critically important parameter for modern commercial Diesel engines which commonly use cooled EGR and exhaust aftertreatment for emissions control. Specifically, it is related to several failure modes such as EGR cooler fouling, EGR valve sticking, Diesel oxidation catalyst poisoning and Diesel particulate filter ash loading. In addition, a low oil consumption leads to longer service intervals and a higher uptime of the vehicle.