- The latest heavy-duty diesel engines, including those equipped with after-treatment systems and EGR
- Diesel applications using older and naturally aspirated conventional designs
- On-highway heavy-duty trucking and off-highway applications including trucking, mining, construction, agriculture, and marine
- On-highway applications operating in both high speed/high load and short haul pick-up/delivery service
- Off-highway applications operating in severe low-speed/heavy load - conditions using up to 500 ppm sulfur fuels
- High-performance gasoline engines requiring API SN and mixed fleet operations
- Diesel-powered equipment from American, European, and Japanese OEMs