check oil Ram 3500 Chassis Cab 2018 User Guide

2. Install the air cleaner cover onto the housing assemblylocating tabs.
3. Latch the spring clips and lock the air cleaner cover to the housing assembly.
Air Conditioner Maintenance
For best possible performance, your air conditioner should
be checked and serviced by an authorized dealer at the
start of each warm season. This service should include
cleaning of the condenser fins and a performance test.
Drive belt tension should also be checked at this time.
WARNING!
•Use only refrigerants and compressor lubricants ap-
proved by the manufacturer for your air conditioning
system. Some unapproved refrigerants are flam-
mable and can explode, injuring you. Other unap-
proved refrigerants or lubricants can cause the sys-
tem to fail, requiring costly repairs. Refer to
Warranty Information Book, for further warranty
information.
(Continued)
WARNING! (Continued)
•The air conditioning system contains refrigerant un-
der high pressure. To avoid risk of personal injury or
damage to the system, adding refrigerant or any
repair requiring lines to be disconnected should be
done by an experienced technician.
CAUTION!
Do not use chemical flushes in your air conditioning
system as the chemicals can damage your air condition-
ing components. Such damage is not covered by the
New Vehicle Limited Warranty.
Refrigerant Recovery And Recycling R134a — If
Equipped
R-134a Air Conditioning Refrigerant is a hydrofluoro-
carbon (HFC) that is an ozone-friendly substance. The
manufacturer recommends that air conditioning service be
performed by an authorized dealer or other service facili-
ties using recovery and recycling equipment.
NOTE: Use only manufacturer approved A/C system PAG
compressor oil and refrigerants.
8
SERVICING AND MAINTENANCE 369

2. Park the vehicle on level ground.
3. Run the engine at normal idle speed for at least 60seconds, and leave the engine running for the rest of this
procedure.
4. Fully apply the parking brake and press the brake pedal.
5. Place the gear selector momentarily into each gear position (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 below
the operating temperature, the fluid level should be be-
tween 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 tempera-
ture.
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.
8
SERVICING AND MAINTENANCE 389

Refer to “Scheduled Servicing” in this chapter for the
proper maintenance intervals.
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 391

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
must be replaced after a collision if they have been
damaged (i.e., bent retractor, torn webbing, etc.).
Plastic And Coated Parts
Use Mopar Total Clean to clean vinyl upholstery.
CAUTION!
• Direct contact of air fresheners, insect repellents,
suntan lotions, or hand sanitizers to the plastic,
painted, or decorated surfaces of the interior may
cause permanent damage. Wipe away immediately.
• Damage caused by these type of products may not be
covered by your New Vehicle Limited Warranty.
Cleaning Plastic Instrument Cluster Lenses
The lenses in front of the instruments in this vehicle are
molded in clear plastic. When cleaning the lenses, care
must be taken to avoid scratching the plastic.
1. Clean with a wet soft cloth. A mild soap solution may be used, but do not use high alcohol content or abrasive
cleaners. If soap is used, wipe clean with a clean damp
cloth.
2. Dry with a soft cloth.
420 SERVICING AND MAINTENANCE

Fluid Type......................... .387, 435
Shifting .............................. .247
Special Additives ........................ .388
Axle Fluid ........................ .390, 391, 435
Axle Lubrication ....................... .390, 391
Back-Up ................................ .284
Back-Up Camera .......................... .284
Battery .............................. .149, 363
Charging System Light ....................149
Keyless Key Fob Replacement ................22
Belts, Seat ............................... .232
Body Builders Guide ..........................7
Body Mechanism Lubrication ..................376
B-Pillar Location .......................... .398
Brake Assist System ........................ .162
Brake Control System, Electronic ................161
Brake Fluid .......................... .386, 435
Brake System ......................... .386, 424
Fluid Check ........................... .386
Master Cylinder ........................ .386
Parking .............................. .243
Warning Light .......................... .147
Brake/Transmission Interlock ..................246
Bulb Replacement ......................... .323Bulbs, Light
.......................... .234, 323
Cab Top Clearance Lights .....................328
Camera ................................ .284
Camera, Rear ............................ .284
Capacities, Antifreeze (Engine Coolant) ...........432
Capacities, Fluid .......................... .432
Caps, Filler Oil (Engine) ........................ .362, 366
Power Steering ......................... .267
Radiator (Coolant Pressure) .................384
Carbon Monoxide Warning ................231, 431
Cargo Light ...............................
73
Car Washes .............................. .418
Cellular Phone ........................... .483
Center High Mounted Stop Light ...............326
Center Seat Storage Compartment ...............109
Changing A Flat Tire ....................... .337
Chart, Tire Sizing .......................... .394
Check Engine Light (Malfunction Indicator Light). . . .157
Checking Your Vehicle For Safety ...............231
Checks, Safety ............................ .231
Child Restraint ........................... .204
Child Restraints Booster Seats ........................... .209
12
INDEX 511

Exterior Lights......................... .67, 234
Filters Air Cleaner ............................ .366
Air Conditioning ..................... .94, 370
Engine Fuel ........................... .433
Engine Oil ......................... .366, 433
Engine Oil Disposal ...................... .366
Flashers Turn Signal ...................... .73, 155, 234
Flash-To-Pass ..............................70
Flat Tire Stowage .......................... .342
Flooded Engine Starting ..................... .241
Fluid, Brake ............................. .435
Fluid Capacities ........................... .432
Fluid Leaks .............................. .234
Fluid Level Checks Automatic Transmission ....................388
Brake ................................ .386
Power Steering ......................... .267
Fluids And Lubricants ...................... .433
Fog Lights ......................... .72, 154, 326
Fold Flat Load Floor ........................113
Folding Rear Seat ...........................41
Four-Way Hazard Flasher .....................318 Four Wheel Drive
......................... .255
Freeing A Stuck Vehicle ..................... .348
Front Axle (Differential) ..................... .390
Fuel ................................... .428
Adding .............................. .287
Additives .......................... .288, 428
Clean Air ............................. .428
Ethanol .............................. .429
Filler Cap (Gas Cap) ..................... .288
Filter ................................ .433
Gasoline .............................. .428
Light ................................ .153
Materials Added ..................... .288, 428
Methanol ............................. .429
Octane

Rating .......................... .428
Requirements .......................... .428
Tank Capacity .......................... .432
Fuses .................................. .329
Garage Door Opener (HomeLink) ............99, 105
Gas Cap (Fuel Filler Cap) .....................288
Gasoline, Clean Air ........................ .428
Gasoline, Reformulated ..................... .428
Gear Ranges ............................. .247
Gear Select Lever Override ....................347
514 INDEX