2019 Ram 2500 engine

SERVICING AND MAINTENANCE 507
Engine Oil — Gas Engine
Change Engine Oil
The oil change indicator system will remind you that it is
time to take your vehicle in for scheduled maintenance. Refer
to the “Maintenance Plan” for further information.
NOTE:
Under no circumstances should oil change intervals exceed
8,000 miles (13,000 km), twelve months or 350 hours of
engine run time, whichever comes first. The 350 hours of
engine run or idle time is generally only a concern for fleet
customers.Engine Oil Selection — 6.4L
For best performance and maximum protection under all
types of operating conditions, the manufacturer only recom
-
mends engine oils that are API Certified and meet the
requirements of FCA Material Standard MS-12633.
American Petroleum Institute (API) Engine Oil
Identification Symbol
This symbol means that the oil has been certified by
the American Petroleum Institute (API). The manu -
facturer only recommends API Certified engine oils.
This symbol certifies 0W-20, 5W-20, 0W-30, 5W-30 and
10W-30 engine oils.
WARNING!
You can be badly injured working on or around a motor
vehicle. Only do service work for which you have the
knowledge and the proper equipment. If you have any
doubt about your ability to perform a service job, take
your vehicle to a competent mechanic.
CAUTION!
Do not use chemical flushes in your engine oil as the
chemicals can damage your engine. Such damage is not
covered by the New Vehicle Limited Warranty.7

508 SERVICING AND MAINTENANCE
Engine Oil Viscosity (SAE Grade) — 6.4L Engine
Use Mopar SAE 0W-40 engine oil approved to FCA Material
Standard MS-12633 such as Pennzoil Ultra equivalent is
recommended for all operating temperatures.
The engine oil filler cap also shows the recommended engine
oil viscosity for your engine. For information on engine oil
filler cap location, refer to the “Engine Compartment” illus-
tration in this section.
Lubricants which do not have both the engine oil certifica -
tion mark and the correct SAE viscosity grade number
should not be used.
Synthetic Engine Oils
You may use synthetic engine oils provided the recom -
mended oil quality requirements are met, and the recom -
mended maintenance intervals for oil and filter changes are
followed.
Synthetic engine oils which do not have both the engine oil
certification mark and the correct SAE viscosity grade
number should not be used. Materials Added To Engine Oil
The manufacturer strongly recommends against the addi
-
tion of any additives (other than leak detection dyes) to the
engine oil. Engine oil is an engineered product and its perfor -
mance may be impaired by supplemental additives.
Disposing Of Used Engine Oil And Oil Filters
Care should be taken in disposing of used engine oil and oil
filters from your vehicle. Used oil and oil filters, indiscrimi -
nately discarded, can present a problem to the environment.
Contact an authorized dealer, service station or govern -
mental agency for advice on how and where used oil and oil
filters can be safely discarded in your area.

SERVICING AND MAINTENANCE 509
Engine Oil Filter
The engine oil filter should be replaced with a new filter at
every engine oil change.
Engine Oil Filter Selection
This manufacturer's engines have a full-flow type disposable
oil filter. Use a filter of this type for replacement. The quality
of replacement filters varies considerably. Only high quality
filters should be used to assure most efficient service. Mopar
engine oil filters are high quality oil filters and are recom-
mended.
Engine Air Cleaner Filter
Refer to the “Maintenance Plan” in this section for the proper
maintenance intervals.
NOTE:
Be sure to follow the “Severe Duty Conditions” maintenance
interval if applicable. Engine Air Cleaner Filter Selection
The quality of replacement engine air cleaner filters varies
considerably. Only high quality filters should be used to
assure most efficient service. Mopar engine air cleaner filters
are a high quality filter and are recommended.
WARNING!
The air induction system (air cleaner, hoses, etc.) can
provide a measure of protection in the case of engine
backfire. Do not remove the air induction system (air
cleaner, hoses, etc.) unless such removal is necessary for
repair or maintenance. Make sure that no one is near the
engine compartment before starting the vehicle with the
air induction system (air cleaner, hoses, etc.) removed.
Failure to do so can result in serious personal injury.
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510 SERVICING AND MAINTENANCE
Engine Air Cleaner Filter Inspection And Replacement
Inspect engine air cleaner filter for dirt and or debris, if you
find evidence of either dirt or debris you should change your
air cleaner filter.
Engine Air Cleaner Filter Removal
1. With suitable tool fully loosen (six) fasteners on aircleaner filter.
Air Cleaner Filter 2. Lift the air cleaner cover to access the air cleaner filter.
3. Remove the air cleaner filter element from the housing
assembly.
Open Air Cleaner Filter Assembly
1 — Fasteners
2 — Air Hose Clamp
3 — Air Cleaner Cover
1 — Air Cleaner Cover
2 — Air Cleaner Filter

SERVICING AND MAINTENANCE 511
Engine Air Cleaner Filter Installation
NOTE:
Inspect and clean the housing if dirt or debris is present
before replacing the air filter element.
1. Install the air cleaner filter element into the housingassembly with the air cleaner filter inspection surface
facing downward.
2. Install the air cleaner cover onto the housing assembly.
3. Tighten the fasteners (six) on the air cleaner filter 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 approved by the manufacturer for your air condi -
tioning system. Some unapproved refrigerants are
flammable and can explode, injuring you. Other unap -
proved refrigerants or lubricants can cause the system
to fail, requiring costly repairs. Refer to Warranty Infor -
mation Book, for further warranty information.
• The air conditioning system contains refrigerant under 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
conditioning components. Such damage is not covered
by the New Vehicle Limited Warranty.
7

SERVICING AND MAINTENANCE 517
• Belt broken (note: identify and correct problem before newbelt is installed)
• Noise (objectionable squeal, squeak, or rumble is heard or felt while drive belt is in operation)
Some conditions can be caused by a faulty component such
as a belt pulley. Belt pulleys should be carefully inspected for
damage and proper alignment.
Belt replacement on some models requires the use of special
tools, we recommend having your vehicle serviced at an
authorized dealer.
Body Lubrication
Locks and all body pivot points, including such items as seat
tracks, door hinge pivot points and rollers, liftgate, tailgate,
decklid, sliding doors and hood hinges, should be lubricated
periodically with a lithium based grease, such as Mopar
Spray White Lube to assure quiet, easy operation and to
protect against rust and wear. Prior to the application of any
lubricant, the parts concerned should be wiped clean to
remove dust and grit; after lubricating excess oil and grease
should be removed. Particular attention should also be given
to hood latching components to ensure proper function. When performing other underhood services, the hood latch,
release mechanism and safety catch should be cleaned and
lubricated.
The external lock cylinders should be lubricated twice a year,
preferably in the Fall and Spring. Apply a small amount of a
high quality lubricant, such as Mopar Lock Cylinder Lubri
-
cant directly into the lock cylinder.
Windshield Wiper Blades
Clean the rubber edges of the wiper blades and the wind -
shield periodically with a sponge or soft cloth and a mild
nonabrasive cleaner. This will remove accumulations of salt
or road film.
Operation of the wipers on dry glass for long periods may
cause deterioration of the wiper blades. Always use washer
fluid when using the wipers to remove salt or dirt from a dry
windshield.
Avoid using the wiper blades to remove frost or ice from the
windshield. Keep the blade rubber out of contact with petro -
leum products such as engine oil, gasoline, etc.
7

520 SERVICING AND MAINTENANCE
Removing Wiper From Wiper Arm
6. Gently lower the wiper arm onto the glass.
Installing The Front Wipers
1. Lift the wiper arm off of the glass, until the wiper arm is in the full up position.
2. Position the wiper blade under the hook on the tip of the wiper arm with the wiper locking tab open. 3. Insert the receiver bracket on the wiper assembly into the
hook on the tip of the arm through the opening in the
wiper blade under the locking tab.
4. Slide the wiper blade up into the hook on the wiper arm until it is latched (engagement will be accompanied by an
audible click). Fold down the latch release tab and snap it
into its locked position.
5. Gently lower the wiper blade onto the glass.
Exhaust System
The best protection against carbon monoxide entry into the
vehicle body is a properly maintained engine exhaust
system.
If you notice a change in the sound of the exhaust system; or
if the exhaust fumes can be detected inside the vehicle; or
when the underside or rear of the vehicle is damaged; have
an authorized technician inspect the complete exhaust
system and adjacent body areas for broken, damaged, dete -
riorated, or mispositioned parts. Open seams or loose
connections could permit exhaust fumes to seep into the
passenger compartment. In addition, have the exhaust
system inspected each time the vehicle is raised for lubrica -
tion or oil change. Replace as required.
1 — Wiper
2 — Locking Tab
3 — Wiper Arm J Hook

SERVICING AND MAINTENANCE 521
(Continued)
Under normal operating conditions, the catalytic converter
will not require maintenance. However, it is important to
keep the engine properly tuned to assure proper catalyst
operation and prevent possible catalyst damage.
NOTE:
Intentional tampering with emissions control systems can
result in civil penalties being assessed against you.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may suggest severe and
abnormal catalyst overheating. If this occurs, stop the
vehicle, turn off the engine and allow it to cool. Service,
including a tune-up to manufacturer's specifications, should
be obtained immediately.
WARNING!
• Exhaust gases can injure or kill. They contain carbon monoxide (CO), which is colorless and odorless.
Breathing it can make you unconscious and can eventu -
ally poison you. To avoid breathing CO, refer to “Safety
Tips” in “Safety” for further information.
• A hot exhaust system can start a fire if you park over materials that can burn. Such materials might be grass
or leaves coming into contact with your exhaust system.
Do not park or operate your vehicle in areas where your
exhaust system can contact anything that can burn.
CAUTION!
• The catalytic converter requires the use of unleaded fuel only. Leaded gasoline will destroy the effective -
ness of the catalyst as an emissions control device and
may seriously reduce engine performance and cause
serious damage to the engine.
• Damage to the catalytic converter can result if your vehicle is not kept in proper operating condition. In the
event of engine malfunction, particularly involving
engine misfire or other apparent loss of performance,
have your vehicle serviced promptly. Continued opera -
tion of your vehicle with a severe malfunction could
cause the converter to overheat, resulting in possible
damage to the converter and vehicle. CAUTION!
(Continued)
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