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How to Check and Add Engine Oil

INSTRUCTIONS FOR 4-STROKE AND VERADO OUTBOARDS

IMPORTANT:
Do not overfill. Tilt outboard out/up past vertical for approximately one minute to allow trapped oil to drain back to the oil sump. Tilt outboard vertical (not tilted) position when checking engine oil. For accurate readings, check oil only when engine is cold or after engine has not run for at least an hour.

  1. Before starting (cold engine) tilt outboard out/up past vertical to allow trapped oil to drain back to oil sump. Allow outboard to remain tilted for approximately one minute.

  2. Remove the top cowl. Refer to Cowl Removal and Installation.

  3. Tilt outboard to vertical operating position.

  4. Pull out the dipstick. Wipe the dipstick end with a clean rag or towel and push it back in all the way.

  5. Pull the dipstick back out again and observe the oil level. Oil should be in the operating range (cross hatched region). 

  6. IMPORTANT: Do not try to fill the oil level to the top of the operating range (cross hatched region). Oil level is correct as long as it appears in the operating range (cross hatched region).

  7. If the oil level is below the operating range (cross hatched region), remove the oil filler cap and add approximately 500 ml (16 ox) of specified outboard motor oil. Allow a few minutes for the added oil to drain to the oil sump and recheck the dipstick. Repeat the process until oil level is in the operating range (cross hatched region). Do not try to fill to the upper end of the operating range (cross hatched region). IMPORTANT: Inspect oil for signs of contamination. Oil contaminated with water will have a milky color to it; oil contaminated with fuel with have a strong fuel smell. If contaminated oil is noticed, have the engine checked by your dealer. 

  8. Push the dipstick back in all the way.

  9. Reinstall the oil fill cap hand-tight.

  10. Reinstall top cowl.
Instructional Tip by MertenMarine.com