Engine Hours & Maintenance Calculator
Calculate maintenance intervals and track engine service schedule
Maintenance Status
Oil Change Status
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Next Oil Change
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Impeller Status
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Next Impeller Change
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Fuel Filter Status
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Next Fuel Filter
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Drive/Leg Service Status
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Next Drive Service
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Estimated Annual Cost
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Standard Maintenance Intervals
| Service Item | Diesel | Gas/Outboard |
|---|---|---|
| Oil & Filter | 100-200 hrs or annually | 50-100 hrs or annually |
| Impeller | 200-400 hrs or 2 years | 200-300 hrs or annually |
| Fuel Filter | 200-500 hrs or annually | 200 hrs or annually |
| Drive Oil | N/A | 100 hrs or annually |
| Zincs | Annually or when 50% depleted | |
Engine Maintenance Tips
Diesel Engines
Change oil every 100-200 hours or annually, whichever comes first. Use marine-grade diesel oil.
Check and change fuel filters more frequently in dirty fuel environments.
Inspect belts, hoses, and coolant levels before each trip.
Outboards & Sterndrives
Flush with fresh water after every saltwater use.
Change drive/leg oil annually and inspect for water contamination.
Use marine-specific fuel stabilizer when storing for more than 2 weeks.