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CD639

Checking Fluid Levels

CRANKCASE OIL

CAUTION

Avoid possible injury or damage to oil dipstick and internal engine components. Do not remove crank-

case oil dipstick when engine is running. Stop the engine completely before removing or inserting dip-

stick.

If it becomes necessary to check oil level during operation, stop engine and allow 5 minutes for oil to drain into pan.

1 Remove dipstick. Wipe clean and reinstall into dipstick tube.

2 Remove dipstick and observe oil level. Oil must be between MIN and MAX marks on dipstick. If necessary,

add oil as follows.

3 Remove oil filler cap. Add specified oil to bring level up to, but not over, MAX mark on dipstick. Reinstall oil

filler cap.

A D3.6L and D4.2L

B D2.8L D-Tronic and D4.2L D-Tronic

C D4.2L LD

CD482

DRIVE UNIT OIL

NOTE: Oil level will fluctuate during operation. Oil level should be checked with cold engine before starting.

4 Check gear lube monitor oil level. Keep oil level at or near FULL line. Check for water at bottom of monitor

and/or if oil appears to be discolored, contact your Authorized MerCruiser Dealer immediately. Both conditions

may indicate a water leak somewhere in the drive unit.

IMPORTANT: If more than 2 fl. oz. (59ml) of Quicksilver Gear Lube are required to fill drive unit, a seal

may be leaking. Contact your Authorized MerCruiser Dealer for service. Damage to unit may occur due

to lack of lubrication.

CD270

POWER STEERING PUMP FLUID

IMPORTANT: If fluid is not visible in reservoir, contact your Authorized MerCruiser Dealer.

Power steering fluid must be checked with engine off and drive unit pointed straight back. Check with engine warm.

5 Remove fill cap/dipstick from reservoir. Wipe clean and reinstall into reservoir.

6 Remove fill cap/dipstick from reservoir and observe fluid level. Fluid must be between marks A and B on fill

cap/dipstick.

A MAXIMUM - FULL HOT Fluid Level -top Line. Fill to this level when fluid is hot. Do not overfill.

B MINIMUM - FULL COLD Fluid Level - Fill to this level when fluid is cold. Do not allow fluid to drop below this

level.

7 If necessary, add Quicksilver Power Trim and Steering Fluid or, if Quicksilver Power Trim and Steering Fluid

is not available, use Dexron III, to bring fluid to proper level. Replace fill cap/dipstick.

Mercury D4.2L D-Tronic User Manual

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