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REPLACEMENT INTERVALS (RAM PICKUP - MEDIUM & HEAVY DUTY - 5.9L
DIESEL) (1)
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Component Months Miles
Air Filter ............................... ( 2) ............... ( 2)
Coolant .................................. ( 3) ............... ( 3)
Engine Oil & Filter
Normal Service .......................... 6 ............... 7500
Severe Service ......................... ( 4) .............. 3750
Fuel Filter
Normal Service .......................... 12 ............ 15,000
Severe Service ......................... ( 4) .............. 7500
Valve Clearance Adjustment ............... ( 5) ............... ( 5)
Automatic Transmission Fluid,
Filter & Band Adjustment
Normal Service .......................... 24 ............ 30,000
Severe Service ......................... ( 4) ............ 15,000
Manual Transmission Fluid ................ ( 6) ............... ( 6)
Transfer Case Fluid (4WD)
Normal Service .......................... 36 ............ 45,000
Severe Service ......................... ( 4) ............ 36,000
Front Differential Fluid (4WD) ( 7)
Severe Service ......................... ( 4) ............ 15,000
Rear Differential Fluid ( 7)
Severe Service ......................... ( 4) ............ 15,000
Repack Front Wheel Bearings (2WD)
Normal Service .......................... 24 ............ 30,000
Severe Service ......................... ( 4) ............ 30,000
Normal Service .......................... 48 ............ 48,000
Severe Service ......................... ( 4) ............ 48,000
( 1) - Different interval may be required for normal and severe
service. Severe service is described as long periods of engine
idling, frequent short trip operation of less than 5 miles,
trailer towing, off-highway operation, snow removal operation,
or operating in dusty or excessively hot conditions.
( 2) - Service interval is not available from manufacturer. Use filter-
minder on top of air cleaner housing to determine condition of
air filter. If filter-minder is in the Red zone, replace air
filter. Reset filter-minder by depressing button on top of
filter-minder.
( 3) - Replace coolant at 30,000 miles or 24 months whichever occurs
first. Replace coolant at 24 months regardless of mileage. After
first coolant change, replace coolant every 24 months or 30,000
miles thereafter.
( 4) - Monthly interval is not available from manufacturer.
( 5) - Does not require routine adjustments.
( 6) - Service interval is not available from manufacturer.
( 7) - Normal service interval is not available from manufacturer.
Manufacturer lists service schedule only under severe service
conditions.
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REPLACEMENT INTERVALS (RAM VAN & RAM WAGON) ( 1) \
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Component Months Miles
Air Filter
Normal Service ................... 24 ................... 30,000
Severe Service ................... ( 2) .............. ( 3) 15,000
![DODGE RAM 1999 Service Repair Manual \
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REPLACEMENT INTERVALS (RAM PICKUP - MEDIUM & H](/manual-img/12/56915/w960_56915-1186.png "DODGE RAM 1999 Service Repair Manual \
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REPLACEMENT INTERVALS (RAM PICKUP - MEDIUM & H")