Valvoline All-Fleet Extra 15W-40 is a high-performance engine oil specifically engineered for heavy-duty vehicles and equipment operating under severe service conditions. Built for maximum engine durability, this oil provides exceptional protection in demanding environments where engines face sustained high loads, extreme temperatures, and extended operating hours.

All-Fleet Extra is formulated to meet the requirements of Euro 3 and Euro 4 truck engines as well as off-road vehicle engines that do not require diesel particulate filter (DPF) compatibility. Its high-SAPS additive chemistry delivers aggressive cleaning power and deposit control, keeping engine internals clean and free from harmful sludge and varnish buildup. The oil is fully compatible with exhaust gas recirculation (EGR) and selective catalytic reduction (SCR) emission control systems.

Key performance benefits include outstanding wear protection under boundary lubrication conditions, excellent thermal and oxidative stability for extended drain intervals, and superior soot handling that prevents oil thickening and viscosity increase. The oil also provides reliable corrosion protection for engine bearings, valve trains, and other critical metal surfaces.

All-Fleet Extra 15W-40 is recommended for mixed fleet operations including long-haul transport, regional delivery, construction, mining, and general vocational service. Its robust formulation handles the diverse demands of different duty cycles and operating environments, making it a dependable choice for fleet managers who need a single oil solution for engines without DPF systems. The 15W-40 viscosity grade ensures year-round performance in temperate and warm climates, providing consistent protection from startup through full operating temperature.