Section 4 - Maintenance
90-8M0113925 eng DECEMBER 2015 Page 39
All Models Capacity Fluid Type
Engine oil (with filter) 6.5 L (7 US qt) Mercury 25W‑40 Synthetic Blend 4‑Stroke Engine Oil
8. Start the engine and operate for three minutes, checking for leaks.
9. Stop the engine and allow the oil to drain into the oil pan for approximately five minutes with the boat at rest in the water.
Transmission Fluid
Checking While Engine is Warm
1. Stop the engine.
2. Remove the dipstick from the transmission.
3. If the fluid level is below the add mark on the dipstick, add the specified fluid through the dipstick hole. Do not overfill.
4. Install the dipstick, hand tighten the T‑handle to seat the O‑ring. Do not overtighten.
Typical ZF Marine Transmission
a - Dipstick
b - O‑ring
c - Dipstick hole
d - Full mark
e - Add mark
Checking While Engine is Cold
NOTE: Cold Fluid Level Check: To ease checking the fluid level, the dipstick can be marked or scribed with a cold level mark.
1. Follow the procedure for the warm fluid level check, then allow the boat to sit overnight.
IMPORTANT: Be sure to push the dipstick all the way down into the dipstick tube when checking the fluid level.
2. Remove the dipstick, wipe clean and reinsert.
3. Remove the dipstick, observe the fluid level and mark the cold fluid level.
4. Install the dipstick, hand tighten the T‑handle to seat the O‑ring. Do not overtighten.
Transmission Fluid
Model
Capacity Fluid Type
63A 4.3 L (4.5 US qt)
Dexron III Automatic Transmission Fluid63V 4.3 L (4.5 US qt)
80A 5.7 L (6 US qt)
Changing
Contact your authorized Mercury MerCruiser dealer.
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