VOLVO DIESEL OIL 15W-40 VDS-3 1L

Function and technical context

15W-40 diesel oil with VDS 4.5 specification is formulated specifically for marine diesel engines, where working conditions are significantly more demanding than in land applications: long load cycles, sudden thermal variations and high humidity environments. This lubricant acts in the engine's lubrication system, forming a protective film on the internal moving components - crankshaft, connecting rods, camshaft and pistons - to minimize friction and metallic wear. The VDS 4.5 (Volvo Drain Specification) classification guarantees reinforced protection against oil oxidation, soot deposits and internal corrosion, critical aspects in marine diesel engines subjected to long hours of navigation. Inadequate or degraded oil causes premature component wear, loss of compression, increased fuel consumption and, in severe cases, engine seizure.

When to replace this oil?

The most common symptoms that indicate that the diesel oil requires immediate renewal are: intense black color or milky appearance on the dipstick (indicative of water or fuel contamination), burning smell during engine operation, increased mechanical noise when starting cold or abnormally high oil consumption between changes. For Volvo Penta marine diesel engines, the recommended oil change interval is usually around 250 hours of operation or once per boating season, whichever comes first, although the engine manual should always be consulted for the exact recommendation depending on the model. Performing a preventive oil change, along with the oil filter, is the maintenance measure with the greatest impact on the longevity of the engine and the prevention of costly breakdowns in navigation.

Equivalent manufacturer part numbers