Valvoline ProFleet LS Plus 10W-40 is a premium engine oil engineered for heavy-duty diesel engines operating under the most demanding conditions. This semi-synthetic blend combines high-quality conventional oils with advanced synthetic base stocks to deliver exceptional engine performance and fuel economy in long-haul trucking, regional delivery, and fleet operations.

Designed specifically for the latest and next-generation low-emission diesel engines, ProFleet LS Plus provides outstanding protection for exhaust aftertreatment systems including diesel particulate filters (DPF) and selective catalytic reduction (SCR) catalysts. Its low-SAPS formulation ensures these emission control devices maintain peak efficiency throughout extended service intervals, reducing maintenance costs and unplanned downtime.

Key benefits include superior cold-start protection that minimizes engine wear during startup in cold climates, excellent high-temperature stability that prevents deposit formation and oil breakdown, and advanced soot dispersancy that keeps the oil clean even under heavy loads. The carefully balanced additive package also provides robust corrosion and oxidation protection, helping to extend engine life.

ProFleet LS Plus 10W-40 is recommended for Euro 6 engines with exhaust aftertreatment systems and remains fully compatible with older Euro 3, 4, and 5 engines. It is an ideal choice for mixed fleets that include both modern and legacy vehicles, simplifying inventory management while delivering top-tier protection across the board. Approved by leading OEM manufacturers, this oil meets the latest European emission standards and delivers reliable performance in on-road and vocational applications.