2020 Ram 1500 tow

SERVICING AND MAINTENANCE 485
If equipped with Stop/Start,
replace accessory drive belt with
OEM grade Mopar belt.X
Replace spark plugs.
1X
Flush and replace the engine
coolant at 10 years or 150,
000 miles (240,000 km)
whichever comes first. X
X
Inspect the transfer case fluid,
change for any of the following:
police, taxi, fleet, or frequent
trailer towing. X
X
Change the transfer case fluid. X
Inspect and replace PCV valve if
necessary. X
1. The spark plug change interval is mileage based only, yearly intervals do not apply.
Mileage or time passed
(whichever comes first)
20,000
30,000
40,00050,00060,00070,000
80,00090,000
100,000
110,000120,000130,000140,000150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000 48,000
64,00080,00096,000
112,000
128,000144,000160,000
176,000192,000208,000224,000240,000
7
2020_DT_1500_OM_US.book Page 485

490 SERVICING AND MAINTENANCE
Checking Oil Level
To assure proper lubrication of your vehicle's engine, the
engine oil must be maintained at the correct level. Check the
oil level at regular intervals, such as every fuel stop. The best
time to check the engine oil level is about five minutes after
a fully warmed up engine is shut off.
Checking the oil while the vehicle is on level ground will
improve the accuracy of the oil level readings. Always main-
tain the oil level within the SAFE zone on the dipstick.
Adding one quart of oil when the reading is at the bottom of
the SAFE zone will result in a reading at the top of the safe
zone on these engines.
Adding Washer Fluid
The fluid reservoir is located under the hood and should be
checked for fluid level at regular intervals. Fill the reservoir
with windshield washer solvent only (not radiator anti -
freeze). When refilling the washer fluid reservoir, take some
washer fluid and apply it to a cloth or towel and wipe the
wiper blades clean. This will help blade performance. To prevent freeze-up of your windshield washer system in
cold weather, select a solution or mixture that meets or
exceeds the temperature range of your climate. This rating
information can be found on most washer fluid containers.
After the engine has warmed up, operate the defroster for a
few minutes to reduce the possibility of smearing or freezing
the fluid on the cold windshield. Windshield washer solu-
tion used with water as directed on the container, aids
cleaning action, reduces the freezing point to avoid line clog
-
ging, and is not harmful to paint or trim.
CAUTION!
Overfilling or underfilling will cause oil aeration or loss
of oil pressure. This could damage your engine.
WARNING!
Commercially available windshield washer solvents are
flammable. They could ignite and burn you. Care must
be exercised when filling or working around the washer
solution.
2020_DT_1500_OM_US.book Page 490

498 SERVICING AND MAINTENANCE
The cabin air filter is located in the fresh air inlet behind the
glove compartment. Perform the following procedure to
replace the filter:
1. Open the glove compartment and remove all contents.
2. With the glove compartment door open, remove theglove compartment tension tether and tether clip by
sliding the clip toward the face of the glove compartment
door. Lift the clip out of glove compartment door and
release into dash panel.
Right Side Of Glove Compartment 3. There are glove compartment travel stops on both sides of
the glove compartment door, push inward on both sides
of the glove compartment to release the glove compart -
ment travel stops.
Glove Compartment
4. Disengage the glove compartment door from its hinges by opening the glove compartment past the travel stop
and pulling it toward you.
1 — Glove Compartment Door
2 — Glove Compartment Tension Tether
1 — Glove Compartment Travel Stop
2 — Glove Compartment Tension Tether
3 — Glove Compartment Door
2020_DT_1500_OM_US.book Page 498

500 SERVICING AND MAINTENANCE
6. Remove the cabin air filter by pulling it straight out of thehousing.
Cabin Air Filter
7. Install the cabin air filter with the arrow on the filter pointing toward the floor. When installing the filter
cover, press on each end until you hear an audible click. 8. Reinstall the glove compartment on the hinges.
9. Pull the tension tether outward and reinstall the glove
compartment past the travel stops by pushing in on the
glove compartment sides.
Glove Compartment
CAUTION!
The cabin air filter is identified with an arrow to indicate
airflow direction through the filter. Failure to properly
install the filter will result in the need to replace it more
often.
1 — Glove Compartment Travel Stop
2 — Glove Compartment Tension Tether
3 — Glove Compartment Door
2020_DT_1500_OM_US.book Page 500

504 SERVICING AND MAINTENANCE
Wiper Blade Removal/Installation
1. Lift the wiper arm to raise the wiper blade off of the glass,until the wiper arm is in the full up position.
Wiper Blade With Release Tab In Locked Position 2. To disengage the wiper blade from the wiper arm, press
the release tab on the wiper blade and while holding the
wiper arm with one hand, slide the wiper blade down
towards the base of the wiper arm.
Wiper Blade With Release Tab In Unlocked Position
3. With the wiper blade disengaged, remove the wiper blade from the wiper arm.
4. Gently lower the wiper arm onto the glass.
CAUTION!
Do not allow the wiper arm to spring back against the
glass without the wiper blade in place or the glass may
be damaged.
1 — Wiper Blade
2 — Wiper Arm
3 — Release Tab
1 — Wiper Blade
2 — Wiper Arm J Hook
3 — J Hook Retainer
2020_DT_1500_OM_US.book Page 504

506 SERVICING AND MAINTENANCE
(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.To minimize the possibility of catalytic converter damage:
• Do not interrupt the ignition when the transmission is in
gear and the vehicle is in motion.
• Do not try to start the vehicle by pushing or towing the vehicle.
• Do not idle the engine with any ignition components disconnected or removed, such as when diagnostic testing,
or for prolonged periods during very rough idle or
malfunctioning operating conditions.Cooling System
• Damage to the catalytic converter can result if yourvehicle 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)
WARNING!
• You or others can be badly burned by hot engine coolant (antifreeze) or steam from your radiator. If you
see or hear steam coming from under the hood, do not
open the hood until the radiator has had time to cool.
Never open a cooling system pressure cap when the
radiator or coolant bottle is hot.
• Keep hands, tools, clothing, and jewelry away from the radiator cooling fan when the hood is raised. The fan
starts automatically and may start at any time, whether
the engine is running or not.
2020_DT_1500_OM_US.book Page 506

522 SERVICING AND MAINTENANCE
Example Tire Placard Location (B-Pillar)
Tire And Loading Information Placard
Tire And Loading Information Placard This placard tells you important information about the:
1. Number of people that can be carried in the vehicle.
2. Total weight your vehicle can carry.
3. Tire size designed for your vehicle.
4. Cold tire inflation pressures for the front, rear, and spare
tires.
Loading
The vehicle maximum load on the tire must not exceed the
load carrying capacity of the tire on your vehicle. You will
not exceed the tire's load carrying capacity if you adhere to
the loading conditions, tire size, and cold tire inflation pres -
sures specified on the Tire and Loading Information placard
in “Vehicle Loading” in the “Starting And Operating”
section of this manual.
NOTE:
Under a maximum loaded vehicle condition, gross axle
weight ratings (GAWRs) for the front and rear axles must not
be exceeded.
For further information on GAWRs, vehicle loading, and
trailer towing, refer to “Vehicle Loading” in the “Starting
And Operating” section of this manual.
2020_DT_1500_OM_US.book Page 522

SERVICING AND MAINTENANCE 523
To determine the maximum loading conditions of your
vehicle, locate the statement “The combined weight of occu-
pants and cargo should never exceed XXX kg or XXX lbs” on
the Tire and Loading Information placard. The combined
weight of occupants, cargo/luggage and trailer tongue
weight (if applicable) should never exceed the weight refer-
enced here.
Steps For Determining Correct Load Limit—

(1) Locate the statement “The combined weight of occupants
and cargo should never exceed XXX kg or XXX lbs.” on your
vehicle's placard.
(2) Determine the combined weight of the driver and passen -
gers that will be riding in your vehicle.
(3) Subtract the combined weight of the driver and passen -
gers from XXX kg or XXX lbs.
(4) The resulting figure equals the available amount of cargo
and luggage load capacity. For example, if “XXX” amount
equals 1400 lbs. and there will be five 150 lb passengers in
your vehicle, the amount of available cargo and luggage load
capacity is 650 lbs. (1400-750 (5x150) = 650 lbs.)
(5) Determine the combined weight of luggage and cargo
being loaded on the vehicle. That weight may not safely exceed the available cargo and luggage load capacity calcu-
lated in Step 4.
(6) If your vehicle will be towing a trailer, load from your
trailer will be transferred to your vehicle. Consult this
manual to determine how this reduces the available cargo
and luggage load capacity of your vehicle.

Metric Example For Load Limit
For example, if “XXX” amount equals 635 kg and there will
be five 68 kg passengers in your vehicle, the amount of avail
-
able cargo and luggage load capacity is 295 kg (635-340
(5x68) = 295 kg) as shown in step 4.
NOTE:
• If your vehicle will be towing a trailer, load from your trailer will be transferred to your vehicle. The following
table shows examples on how to calculate total load,
cargo/luggage, and towing capacities of your vehicle with
varying seating configurations and number and size of
occupants. This table is for illustration purposes only and
may not be accurate for the seating and load carry capacity
of your vehicle.
• For the following example, the combined weight of occu -
pants and cargo should never exceed 865 lbs (392 kg).
7
2020_DT_1500_OM_US.book Page 523