Checking While Engine Is Cold; Transmission Fluid; Changing; Closed Cooling System - Mercury MerCruiser Horizon 8.2 ECT Manual

Section 5 - Maintenance
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
63A
63V
80A

Changing

Contact your authorized Mercury MerCruiser dealer.

Closed Cooling System

Coolant Requirement

Using propylene glycol antifreeze in the closed cooling system can damage the cooling system or the engine. Fill the closed
cooling system with an ethylene glycol antifreeze solution suitable to the lowest temperature to which the engine will be
exposed.
NOTE: All factory‑installed closed cooling systems come filled with Extended Life Coolant. This antifreeze requires draining and
replacing every five years or 1000 hours of operation, whichever comes first. The color of this antifreeze is orange. Any "top‑off"
fluid used must be Extended Life Coolant.
Page 54
a
Capacity
4.3 L (4.5 US qt)
4.3 L (4.5 US qt)
5.7 L (6 US qt)
b
Fluid Type
Dexron III Automatic Transmission Fluid
NOTICE
e
d
c
43702
90-8M0061999 MAY 2012
eng