The BMW ship engine typically includes specifications such as size ranging from 2.0L to 6.6L displacement, grade classifications like marine diesel or gasoline, viscosity requirements of SAE 15W-40 or similar for lubrication, buoyancy considerations for marine applications, and materials such as aluminum alloy blocks, stainless steel components, and reinforced polymer parts for durability in marine environments.
Engine parts may include pistons (forged aluminum), crankshafts (high-strength steel), cylinder heads (aluminum alloy), gaskets (multi-layer steel or composite), and turbochargers (nickel-alloy turbines). Cooling systems often use corrosion-resistant materials like brass or marine-grade aluminum.
Fuel specifications may include low-sulfur diesel (ISO 8217 standards) or gasoline (RON 95+), with oil filtration systems designed for high particulate retention. Exhaust systems incorporate seawater-resistant materials like duplex stainless steel.
Buoyancy is managed through engine placement and hull design, with weight distribution optimized for stability. Electrical components are often IP67-rated for water resistance.
