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Mercury 8 Bigfoot 4-Stroke - Checking Engine Oil

Mercury 8 Bigfoot 4-Stroke
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FUEL AND OIL
30
Checking 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. Remove dipstick. Wipe dipstick with a clean rag or towel and push it back in all the way.
3. Pull the dipstick out again and observe the oil level. If oil level is low, remove oil filler cap and fill to (but not
over) the full mark 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.
4. Reinstall the oil filler cap and tighten securely.
4914
a
b
a - Dipstick b - Oil filler cap

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