Two-Stroke Engine Energy, User-Entered Feed Rate, Daily/Annual Consumption, Cost, ROB Endurance & Resupply Planning
Marine Cylinder Oil Consumption & Cost Tool
Estimate two-stroke cylinder-oil consumption from engine output energy and the feed rate you enter. The tool calculates daily and annual mass, liters, cost and onboard-stock endurance. Advanced mode models multiple load periods with different feed rates and adds procurement lead-time, voyage ROB and sensitivity planning.
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Need different feed rates by load period, fuel-ratio estimates and ROB resupply coverage? Click Advanced above.Advanced calculates each load period separately and derives an energy-weighted feed rate. The calculator never recommends a feed rate or interprets scrape-down oil condition.
Fast Cylinder-Oil Consumption Screen
Exactly 10 primary inputs. Feed rate must come from the vessel's approved/OEM operating basis or an observed setting. This tool does not optimize it.
kW per engine.
% of rated power.
Annualization basis in operating days, not years. Default 330. Values below 30 require explicit confirmation.
g/kWh, user-entered operating basis.
Selected currency per metric tonne.
kg/L.
metric tonnes.
metric tonnes.
Engine, Oil & Stock Basis
kW per engine.
Annualization basis in operating days, not years. Default 330. Values below 30 require explicit confirmation.
Selected currency per metric tonne.
kg/L.
liters.
g/kWh. Enter 0 to disable oil-to-fuel ratio.
metric tonnes.
metric tonnes.
days.
days.
g/kWh. Enter 0 to disable screening. The calculator does not supply this value.
Representative Daily Load & Feed-Rate Profile
Hours across rows must total no more than 24. Operating-mode names are excluded from Tool Data. Each row uses its own entered load and feed rate.
| Operating mode | Load % MCR | Hours / day | Feed rate g/kWh | |
|---|---|---|---|---|
Cylinder Lubrication & Supply Readiness
Consumption / procurement screen only: cylinder-oil feed rate is engine-, liner-, ring-, fuel- and operating-condition-specific. This tool does not recommend lowering or increasing feed rate, choose cylinder-oil BN, interpret drain-oil analysis, assess cold corrosion or override OEM limits, approved lubrication settings or vessel procedures. A lower calculated lubricant cost is never evidence that a lower feed rate is technically acceptable.