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MS.90032) and distilled water for proper corrosion pro-
tection of your engine which contains aluminum com-
ponents.
• Make sure that the coolant expansion bottle overflow
hoses are not kinked or obstructed.
• Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
• Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install ONLY
the correct type thermostat. Other designs may result in
unsatisfactory engine coolant (antifreeze) performance,
poor gas mileage, and increased emissions.
Charge Air Cooler — Inter-Cooler
The charge air cooler is positioned below the radiator and
the air conditioner condenser. Air enters the engine
through the air cleaner and passes through the turbo-
charger, where it is pressurized. This pressurized air rap-
idly reaches high temperature. The air is then directed
through a hose to the charge air cooler and through another
hose to the intake manifold of the engine. The air entering the engine has been cooled by about 50° to 100°F (10° to
38°C). This cooling process enables more efficient burning
of fuel resulting in fewer emissions.
To guarantee optimum performance of the system, keep
the surfaces of the charge air cooler, condenser and radiator
clean and free of debris. Periodically check the hoses
leading to and from the charge air cooler for cracks or loose
clamps resulting in loss of pressure and reduced engine
performance.
Brake System
Brake Master Cylinder — Brake Fluid Level Check
The fluid level of the master cylinder should be checked
when performing under the hood service, or immediately
if the “Brake System Warning Light” indicates system
failure.
The brake master cylinder has a translucent plastic reser-
voir. On the outboard side of the reservoir, there is a
“MAX” mark and a “MIN” mark. The fluid level must be
kept within these two marks. Do not add fluid above the
full mark because leakage may occur at the cap.7
MAINTAINING YOUR VEHICLE 195
Page 220 of 228

Adding Engine Coolant (Antifreeze)..............66
Adding Fuel ...............................45
Air Cleaner, Engine (Engine Air Cleaner Filter) ......57
Antifreeze (Engine Coolant) ....................65
Capacities ..............................71
Disposal ................................68
Automatic Transmission Fluid Type ..............................75
Axle Fluid ................................75
Battery ...................................64
Brake Fluid................................75
Brake System ..............................69
Fluid Check .............................69
Master Cylinder ..........................69
Capacities, Antifreeze (Engine Coolant) ............71
Capacities, Fluid ............................71
Caps, Filler Oil (Engine) .............................56
Radiator (Coolant Pressure) ..................67
Charge Air Cooler ...........................69
Coolant Pressure Cap (Radiator Cap) .............67
Cooling System .............................65
Adding Coolant (Antifreeze) .................66 Coolant Capacity
.........................71
Coolant Level ............................65
Disposal Of Used Coolant ...................68
Drain, Flush, And Refill .....................65
Points To Remember .......................68
Pressure Cap ............................67
Radiator Cap ............................67
Selection Of Coolant (Antifreeze) ...........65,72
Diesel Fuel ................................40
Diesel Fuel Requirements ......................40
Bulk Storage Of ..........................48
Diesel Fuel System, Re-Priming .................62
Disposal Antifreeze (Engine Coolant) ..................68
Draining Fuel/Water Separator Filter .............60
Engine ...................................54
Air Cleaner .............................57
Block Heater ..........................34,40
Break-In Recommendations ..................11
Compartment ............................54
Coolant (Antifreeze) .......................72
Identification ............................54
Idling .................................38
218 INDEX - RAM 1500
Page 221 of 228

Oil.................................55,72
Oil Filler Cap............................56
Filters Air Cleaner .............................57
Engine Fuel .............................60
Engine Oil ...........................57,72
Engine Oil Disposal .......................57
Fluid Capacities ............................71
Fluid Level Checks Brake ..................................69
Fluid, Brake...............................75
Fluids, Lubricants And Genuine Parts .............72
Fuel .....................................40
Adding ................................45
Diesel ..............................40,72
Filter ..................................60
Requirements ............................40
Specifications ............................41
Tank Capacity ............................71
Fueling ..................................45
Gauges Voltmeter ...............................35
Instrument Cluster ..........................14 Intervention Regeneration Strategy
...............25
Keyless Enter-N-Go ..........................33
Maintenance Procedures ......................55
Maintenance Schedule ........................78
New Vehicle Break-In Period ...................11
Oil, Engine ................................55
Capacity ...............................71
Change Interval ..........................56
Dipstick ................................55
Disposal ................................57
Filter ...............................57,72
Filter Disposal ...........................57
Materials Added To ........................57
Recommendation .........................55
Viscosity ...............................56
Radiator Cap (Coolant Pressure Cap) .............65
Remote Starting System .......................10
Schedule, Maintenance .......................78
Selection Of Coolant (Antifreeze) ................72
8
INDEX - RAM 1500 219
Page 223 of 228

Adding Engine Coolant (Antifreeze).............192
Adding Fuel ............................. .160
Air Cleaner, Engine (Engine Air Cleaner Filter) ......180
Air Filter ............................... .180
Antifreeze (Engine Coolant) ...................192
Capacities ............................. .204
Disposal .............................. .194
Automatic Transmission Adding Fluid .......................... .199
Fluid Level Check ....................... .198
Fluid Type ............................ .207
Shifting .............................. .141
Axle Fluid .............................. .207
Battery ................................. .190
Blanket ........................... .132 , 191
Emergency Starting ...................... .170
Brake System ............................ .195
Fluid Check ........................... .195
Master Cylinder ........................ .195
Brake/Transmission Interlock ..................141
Capacities, Antifreeze (Engine Coolant) ...........204
Capacities, Fluid .......................... .204Caps, Filler
Oil (Engine) ........................... .178
Radiator (Coolant Pressure) .................193
Charge Air Cooler ......................... .195
Coolant Pressure Cap (Radiator Cap) .............193
Cooling System ........................... .191
Adding Coolant (Antifreeze) .................192
Coolant Capacity ........................ .204
Coolant Level .......................... .191
Disposal Of Used Coolant ..................194
Drain, Flush, And Refill ....................192
Points To Remember ..................... .194
Pressure Cap ........................... .193
Radiator Cap .......................... .193
Selection
Of Coolant (Antifreeze) ..........192 , 205
Diesel Exhaust Brake ....................... .138
Diesel Fuel .............................. .157
Diesel Fuel Requirements .....................157
Bulk Storage Of ......................... .163
Diesel Fuel System, Re-Priming .................188
Disposal Antifreeze (Engine Coolant) .................194
Draining Fuel/Water Separator Filter .............184
8
INDEX - RAM 2500 / 3500 / 4500 / 5500 221