Browse Publications Technical Papers 2003-01-1964

Challenges for Future Heavy Duty Diesel Lubricant Development: PC-10/DX-2/Euro IV 2003-01-1964

Over the last decade, the introduction of increasingly stringent emissions legislation to control emissions from vehicles, has necessitated a variety of changes in Heavy Duty Diesel (HDD) engines to ensure that these requirements can be achieved. These include: the use of increased retardation of fuel injection timing, modifications to fuel injection technology in terms of pressure of injection together with electronic control, the use of inter-coolers and most recently exhaust gas re-circulation (EGR).
It appears clear that US Federal Tier III, Euro IV and Japanese New Long Term (NLT) emissions legislation will result in the widespread use of aftertreatment devices for the reduction of oxides of nitrogen (NOx) and particulate matter (PM) in heavy duty diesel engines. Feedback from vehicle manufacturers (OEMs) indicates that the use of such devices will require the introduction of lubricants with reduced phosphorus, sulfur and ash content to facilitate durability of these aftertreatment devices. This paper will describe the challenges faced in the development of such lubricants and data presented to demonstrate that satisfactory performance may be achieved in terms of wear and corrosion parameters. Data will be presented from Mack T10 and GM 6.5 Roller Follower Wear testing at reduced phosphorus, sulfur and ash levels and the impact of fuel sulfur level investigated. Data will also be presented from the XUD11 BTE test to examine the impact of fuel sulfur level on dispersancy performance. Testing will be required to validate these observations in future engine designs.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:

The Influence of Dispersant PAMA on Soot Handling, Wear and Fuel Economy in Heavy Duty Diesel Oils


View Details


Advanced Two-Actuator EUI and Emission Reduction for Heavy-Duty Diesel Engines


View Details


Experimental Study of Inlet Manifold Water Injection on a Common Rail HSDI Automobile Diesel Engine, Compared to EGR with Respect to PM and Nox Emissions and Specific Consumption


View Details