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Mercury 40 4-Stroke User Manual

Mercury 40 4-Stroke
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FUEL & OIL
23
IMPORTANT: The use of non detergent oils, multi-viscosity oils (other than Mercury or Quicksilver NMMA
FC-W certified oil or a major brand NMMA FC-W certified oil), synthetic oils, low quality or oils that contain
solid additives are not recommended.
+20
+40
+60
+80
0
+100
-7
+4
+16
+27
-18
+38
a
b
11583
Recommended SAE Viscosity for Engine Oil
a - NMMA FC- W certified 10W-30
outboard oil may be used at
temperatures below 4 °C (40 °F)
b - NMMA FC-W certified synthetic blend
25W-40 outboard oil may be used in all
temperatures.
Checking and Adding Engine Oil
IMPORTANT: Do not overfill. Be sure that the outboard is upright (not tilted) when checking oil.
1. Turn the engine off. Have the outboard in a level operating position. Remove the top cowl.
2. Flip the handle up and pull out the dipstick. Wipe it with a clean rag or towel and push it back in
all the way.
3. Pull the dipstick back out again and observe the oil level. If the oil level is low, remove the oil filler
cap and fill to (but not over) the upper oil level with the recommended oil.
IMPORTANT: Inspect oil for signs of contamination. Oil contaminated with water will have a milky color
to it; oil contaminated with fuel will have a strong fuel smell. If contaminated oil is noticed, have the
engine checked by your dealer.

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Mercury 40 4-Stroke Specifications

General IconGeneral
BrandMercury
Model40 4-Stroke
CategoryOutboard Motor
LanguageEnglish

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