Section 5 - Maintenance
Page 66 90-8M0074347 eng OCTOBER 2012
IMPORTANT: Always use the dipstick to determine exactly how much oil is required. Do not overfill the engine with oil.
6. Add the specified engine oil to bring the level up to up to, but not over, the full or OK range on the dipstick.
NOTE: Adding 0.95 liters (1 quart) of engine oil will raise the level from the add mark to the top of the OK range.
Engine Model Capacity Fluid Type
3.0 TKS 3.8 L (4 US qt) Mercury Full‑Synthetic MerCruiser Oil 20W‑40
7. Start and operate the engine for three minutes, checking for leaks.
8. 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.
9. Check the oil level and add more if necessary.
Power‑Assisted Steering Fluid—3.0 MPI ECT
Checking
1. Stop the engine and center the sterndrive unit.
2. Remove the fill cap from the power steering pump reservoir and observe the level. The oil level must be at the lower mark
when the engine is cold and at the upper mark when the engine is warm.
a - Power steering pump reservoir cap
b - Warm full mark
c - Cold full mark
3.
Add the specified fluid if required. Refer to Filling.
IMPORTANT: If fluid is not visible in pump, contact your authorized Mercury MerCruiser dealer.
Filling
1. Remove the fill cap and dipstick and observe the fluid level.
2. Add the specified fluid to bring the fluid level up to the proper level.
Tube Ref No.
Description Where Used Part No.
114
Power Trim and Steering
Fluid
Power-assisted steering pump 92-858074K01
28
Dexron III Automatic
Transmission Fluid
Power-assisted steering system Obtain Locally
3. Install the fill cap and dipstick.
Changing
Power‑assisted steering fluid does not require changing unless it becomes contaminated with water or debris. Contact your
authorized Mercury MerCruiser dealer.
Power‑Assisted Steering Fluid—3.0 TKS
Checking
1. Stop the engine and center the sterndrive unit.
2. Remove the fill cap/dipstick and observe the level.
a. Proper fluid level with engine at normal operating temperature should be within the warm range.
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