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Mercury D4.2L D-Tronic User Manual

Mercury D4.2L D-Tronic
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CD644
CRANKCASE OIL AND FILTER - D4.2L LD
IMPORTANT: Change oil when engine is warm from operation. Warm oil flows more freely, carrying
away more impurities. Use only recommended motor oil (refer to Specifications).
1 Start engine and allow it to warm up to normal operating temperature.
2 Stop engine and allow some time for oil to drain into oil pan (approximately 5 minutes).
3 Remove fitting from end of crankcase oil pump. Attach a suitable hose for draining.
4 Pump oil out of crankcase into drain pan. When crankcase is empty, remove hose and reinstall crankcase
oil pump fitting. Tighten securely.
5 Remove and discard oil filter and sealing ring. Coat sealing ring on new filter with oil and install filter. Hand
tighten only, do not use a filter wrench.
6 Remove oil fill cap and refill engine with new oil (refer to Specifications for quantity and grade of oil).
IMPORTANT: When refilling engine with oil always use dipstick to determine how much oil is required.
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.
IMPORTANT: After oil change, pre-lubricate turbocharger and engine. To do this, move the STOP switch
toggle lever DOWN and hold in this position while you turn the key switch to START position. Doing this
TOGETHER turns the engine without starting it. DO NOT engage starter for more than 15 seconds; allow
at least one minute cool down time before re-engaging starter for another 15 seconds. Watch that starter
does not overheat.

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Mercury D4.2L D-Tronic Specifications

General IconGeneral
BrandMercury
ModelD4.2L D-Tronic
CategoryEngine
LanguageEnglish

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