MOTUL INBOARD 4T 15W40 5L Engine Oil

Compatibility

MOTUL INBOARD 4T 15W40 is a high-performance lubricant designed for modern four-stroke engines. It is dedicated to stationary marine applications where stable operation under load is critical. Before purchasing, verify compatibility with your equipment. Due to the diversity of outboard engine designs, we do not list specific brands to avoid errors. We recommend checking if the catalog number INBOARD 4T 15W405L or your engine's original OE number matches the manufacturer's requirements. If you have doubts about selecting the right oil, contact our customer support – we are happy to help you choose the correct product, ensuring the safety and durability of your engine.

Installation and Maintenance Tips

Oil changes are a basic service task that determines the lifespan of the power unit. Before starting work, ensure the engine is cold or lukewarm and the boat is on a stable, level surface. Unscrew the drain plug and let the old oil drain completely. Important: after changing the oil, we also recommend replacing the oil filter (if the engine has one) and checking the condition of the seals. Pour the new MOTUL oil slowly using a funnel to avoid spills. After filling, start the engine for a few minutes, then check the oil level with the dipstick, topping up if necessary. Regular oil changes every 100 hours of operation or once per season guarantee a clean lubrication system.

• Wear Protection: advanced formula protects engine components from friction and corrosion.
• Thermal Stability: excellent performance at high temperatures typical of outboard engines.
• System Cleanliness: prevents sludge and varnish formation, ensuring smooth engine operation.
• Compatibility: suitable for 4T engines requiring 15W-40 grade oil.