check oil Ram 4500 Chassis Cab 2018 User Guide

4. Fully apply the parking brake and press the brake pedal.
5. Place the gear selector momentarily into each gearposition (allowing time for the transmission to fully
engage in each position), ending with the transmission
in PARK.
6. Wipe the area around the dipstick clean to prevent dirt from entering the transmission.
7. Remove the dipstick, wipe it clean and reinsert it until seated.
8. Remove the dipstick again and note the fluid level on both sides. The fluid level reading is only valid if there
is a solid coating of oil on both sides of the dipstick.
Note that the holes in the dipstick will be full of fluid if
the actual level is at or above the hole. The fluid level
should be between the “HOT” (upper) reference holes
on the dipstick at normal operating temperature. If the
fluid level is low, add fluid through the dipstick tube to
bring it to the proper level. Do not overfill.Use ONLY
the specified fluid (see Fluids, Lubricants, and Genuine
Parts for fluid specifications). After adding any quan-
tity of oil through the dipstick tube, wait a minimum of
two minutes for the oil to fully drain into the transmis-
sion before rechecking the fluid level. NOTE:If it is necessary to check the transmission
belowthe
operating temperature, the fluid level should be between the
two “COLD” (lower) holes on the dipstick with the fluid at
60-70°F / 16-21°C for 66RFE transmission, or 68-86°F /
20-30°C for AS66RC transmission. Only use the COLD region
of the dipstick as a rough reference when setting the fluid
level after a transmission service or fluid change. Re-check
the fluid level, and adjust as required, once the transmission
reaches normal operating temperature.
CAUTION!
If the fluid temperature is below 50°F (10°C) it may not
register on the dipstick. Do not add fluid until the
temperature is elevated enough to produce an accurate
reading. Run the engine at idle, in PARK, to warm the
fluid.
9. Reinsert the dipstick. Check for leaks. Release the park- ing brake.
NOTE:
To prevent dirt and water from entering the transmis-
sion after checking or replenishing fluid, make sure that the
dipstick cap is properly reseated. It is normal for the dipstick
cap to spring back slightly from its fully seated position, as
long as its seal remains engaged in the dipstick tube.
8
SERVICING AND MAINTENANCE 391

Lubricant Selection
Refer to “Fluids And Lubricants” in “Technical Specifica-
tions” for further information.
NOTE:The presence of water in the gear lubricant will
result in corrosion and possible failure of differential
components. Operation of the vehicle in water, as may be
encountered in some off-highway types of service, will
require draining and refilling the axle to avoid damage.
Limited-Slip Differentials DO NOT REQUIRE any lim-
ited slip oil additive (friction modifiers).
NOTE: Slight noise and mild shuddering may be evident
while turning a vehicle with limited slip differential on
concrete or dry pavement. These conditions should be
considered normal operation of the limited slip differential.
Transfer Case
Selection Of Lubricant
Use only the manufacturer’s recommended fluid. Refer to
“Fluids And Lubricants” in “Technical Specifications” for
further information.
Fluid Level Check
This fluid level can be checked by removing the filler plug.
The fluid level should be to the bottom edge of the filler
plug hole with the vehicle in a level position.
Drain And Refill
Refer to the “Maintenance Plan” for the proper mainte-
nance intervals.
HOISTING
A conventional floor jack may be used at the jacking
locations. Refer to the graphics that show jacking locations.
However, a floor jack or frame hoist must never be used on
any other parts of the underbody.
CAUTION!
Never use a floor jack directly under the differential
housing of a loaded truck or damage to your vehicle
may result.
8
SERVICING AND MAINTENANCE 393

INTERIORS
Seats And Fabric Parts
Use Mopar Total Clean to clean fabric upholstery and
carpeting.
WARNING!
Do not use volatile solvents for cleaning purposes.
Many are potentially flammable, and if used in closed
areas they may cause respiratory harm.
Stain Repel Fabric Cleaning Procedure — If
Equipped
Stain Repel seats may be cleaned in the following manner:
•Remove as much of the stain as possible by blotting with
a clean, dry towel.
• Blot any remaining stain with a clean, damp towel.
• For tough stains, apply Mopar Total Clean, or a mild
soap solution to a clean, damp cloth and remove stain.
Use a fresh, damp towel to remove soap residue.
• For grease stains, apply Mopar Multi-Purpose Cleaner
to a clean, damp cloth and remove stain. Use a fresh,
damp towel to remove soap residue. •
Do not use any harsh solvents or any other form of
protectants on Stain Repel products.
Seat Belt Maintenance
Do not bleach, dye or clean the belts with chemical solvents
or abrasive cleaners. This will weaken the fabric. Sun
damage can also weaken the fabric.
If the belts need cleaning, use a mild soap solution or
lukewarm water. Do not remove the belts from the vehicle
to wash them. Dry with a soft cloth.
Replace the belts if they appear frayed or worn or if the
buckles do not work properly.
NOTE: If the belts retract slowly, inspect the upper turning
loop for soiling. If soiling is present, clean with a wet soft
cloth until all residue is removed.
WARNING!
A frayed or torn belt could rip apart in a collision and
leave you with no protection. Inspect the belt system
periodically, checking for cuts, frays, or loose parts.
Damaged parts must be replaced immediately. Do not
disassemble or modify the system. Seat belt assemblies
(Continued)
422 SERVICING AND MAINTENANCE

NOTE:Dual wheels are flat mounted, center piloted. The
lug nuts are a two-piece assembly. When the tires are being
rotated or replaced, clean these lug nuts and add two drops
of oil at the interface between the hex and the washer.
Ensure that the socket is fully engaged on the lug nut/bolt
(do not insert it half way).
Do not oil wheel studs. For chrome wheels, do not substi-
tute with chrome plated wheel nuts. Retighten the wheel nuts in the same sequence to the
torques listed in the table. Go through the sequence a
second time to verify that specific torque has been
achieved. Retighten to specifications after 25 miles (40 km)
and check the lug nut/bolt torque to be sure that all the lug
nuts/bolts are properly seated against the wheel.
Oil Interface Location
Wheel Mounting Surface
428 TECHNICAL SPECIFICATIONS

Fluid Type......................... .389, 437
Shifting .............................. .248
Special Additives ........................ .390
Axle Fluid ........................ .392, 393, 437
Axle Lubrication ....................... .392, 393
Back-Up ................................ .286
Back-Up Camera .......................... .286
Battery .............................. .152, 365
Charging System Light ....................152
Keyless Key Fob Replacement ................23
Belts, Seat ............................... .234
Body Builders Guide ..........................7
Body Mechanism Lubrication ..................379
B-Pillar Location .......................... .400
Brake Assist System ........................ .166
Brake Control System, Electronic ................165
Brake Fluid .......................... .388, 437
Brake System ......................... .388, 426
Fluid Check ........................... .388
Master Cylinder ........................ .388
Parking .............................. .245
Warning Light .......................... .150
Brake/Transmission Interlock ..................248
Bulb Replacement ......................... .325Bulbs, Light
.......................... .236, 325
Cab Top Clearance Lights .....................330
Camera ................................ .286
Camera, Rear ............................ .286
Capacities, Antifreeze (Engine Coolant) ...........434
Capacities, Fluid .......................... .434
Caps, Filler Oil (Engine) ........................ .364, 368
Power Steering ......................... .269
Radiator (Coolant Pressure) .................386
Carbon Monoxide Warning ................233, 433
Cargo Light ...............................
75
Car Washes .............................. .421
Cellular Phone ........................... .486
Center High Mounted Stop Light ...............328
Center Seat Storage Compartment ...............113
Changing A Flat Tire ....................... .339
Chart, Tire Sizing .......................... .396
Check Engine Light (Malfunction Indicator Light). . . .160
Checking Your Vehicle For Safety ...............233
Checks, Safety ............................ .233
Child Restraint ........................... .208
Child Restraints Booster Seats ........................... .212
12
INDEX 513

Exterior Lights......................... .69, 236
Filters Air Cleaner ............................ .368
Air Conditioning ..................... .97, 372
Engine Fuel ........................... .435
Engine Oil ......................... .368, 435
Engine Oil Disposal ...................... .368
Flashers Turn Signal ...................... .75, 158, 236
Flash-To-Pass ..............................72
Flat Tire Stowage .......................... .344
Flooded Engine Starting ..................... .243
Fluid, Brake ............................. .437
Fluid Capacities ........................... .434
Fluid Leaks .............................. .236
Fluid Level Checks Automatic Transmission ....................390
Brake ................................ .388
Power Steering ......................... .269
Fluids And Lubricants ...................... .435
Fog Lights ......................... .74, 157, 328
Fold Flat Load Floor ........................117
Folding Rear Seat ...........................43
Four-Way Hazard Flasher .....................320 Four Wheel Drive
......................... .257
Freeing A Stuck Vehicle ..................... .350
Front Axle (Differential) ..................... .392
Fuel ................................... .429
Adding .............................. .289
Additives .......................... .290, 430
Clean Air ............................. .430
Ethanol .............................. .431
Filler Cap (Gas Cap) ..................... .290
Filter ................................ .435
Gasoline .............................. .429
Light ................................ .156
Materials Added ..................... .290, 430
Methanol ............................. .431
Octane

Rating .......................... .429
Requirements .......................... .429
Tank Capacity .......................... .434
Fuses .................................. .331
Garage Door Opener (HomeLink) ............102, 108
Gas Cap (Fuel Filler Cap) .....................290
Gasoline, Clean Air ........................ .430
Gasoline, Reformulated ..................... .430
Gear Ranges ............................. .249
Gear Select Lever Override ....................349
516 INDEX