2020 Ram 3500 fuel filter

SERVICING AND MAINTENANCE411

Engine Mounted Fuel Filter Assembly
1. Ensure engine is turned off.

2. Place drain pan under the fuel filter drain
hose.
3. Open the water drain valve a quarter turn counterclockwise and completely drain fuel
and water into the approved container.
4. Close the water drain valve.
5. Remove lid using a socket or strap wrench. Rotate counterclockwise for removal.
Remove used o-ring and discard it.
6. Remove the used filter cartridge from the housing and dispose of according to your
local regulations.
7. Wipe clean the sealing surfaces of the lid and housing. 8. Install new o-ring back into ring groove on
the filter housing and lubricate with clean
engine oil.
9. Remove new filter cartridge from plastic bag and install into housing.
NOTE:
Do not remove cartridge from bag until you
reach this step in order to keep cartridge clean.
10. Push down on the cartridge to ensure it is properly seated. Do not pre-fill the filter
housing with fuel.
11. Install lid onto housing and tighten to 22.5 ft lbs (30.5 N.m). Do not overtighten
the lid.
12. Prime the engine using the procedure in “Priming If The Engine Has Run Out Of Fuel.”
Then start the engine and confirm there are
no leaks.
1 — Drain Valve
CAUTION!
Diesel fuel will damage blacktop paving
surfaces. Drain the filter into an appro-
priate container.
Do not prefill the fuel filter when installing a
new fuel filter. There is a possibility debris
could be introduced into the fuel filter
during this action. It is best to install the
filter dry and allow the in-tank lift pump to
prime the fuel system.
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412SERVICING AND MAINTENANCE
UNDERBODY MOUNTED FUEL FILTER
R
EPLACEMENT — DIESEL ENGINE
NOTE:
Using a fuel filter that does not meet the
manufacturer's filtration and water sepa -
rating requirements can severely impact fuel
system life and reliability.
The underbody mounted filter housing will
cause the engine not to run if:
a. No filter is installed.

Underbody Mounted Fuel Filter Assembly
1. Ensure engine is turned off.

2. Place drain pan under the fuel filter drain
hose.
3. Open the water drain valve one full turn counterclockwise and completely drain fuel
and water into the approved container.
4. Close the water drain valve.
5. Remove lid using a socket or strap wrench. Rotate counterclockwise for removal.
Remove used o-ring and discard it.
6. Remove the used filter cartridge from the housing and dispose of according to your
local regulations. 7. Wipe clean the sealing surfaces of the lid
and housing.
8. Install new o-ring back into ring groove on the filter housing and lubricate with clean
engine oil.
NOTE:
Water In Fuel (WIF) sensor is re-usable. Service
kit comes with new o-ring for filter canister and
WIF sensor.
PRIMING IF THE ENGINE HAS RUN OUT
O
F FUEL — DIESEL ENGINE

1. Add a substantial amount of fuel to the
tank, approximately 2 to 5 gal (8L to 19L).

2. Three priming cycles must be completed. Turn ignition to the RUN position and wait
approximately 30 seconds. This will activate
the in tank fuel pump. Turn the ignition
1 — Drain Valve
CAUTION!
Diesel fuel will damage blacktop paving
surfaces. Drain the filter into an appro-
priate container.
Do not prefill the fuel filter when installing a
new fuel filter. There is a possibility debris
could be introduced into the fuel filter
during this action. It is best to install the
filter dry and allow the in-tank lift pump to
prime the fuel system.
WARNING!
Do not open the high pressure fuel system
with the engine running. Engine operation
causes high fuel pressure. High pressure fuel
spray can cause serious injury or death.

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SERVICING AND MAINTENANCE413
switch to the off position, and leave off for at
least 30 seconds. Repeat this procedure
three times before cranking the engine.
3. Start the engine using the “Normal Starting” procedure. Refer to “Starting Procedures”
in “Starting and Operating” for further
information.
4. Once the engine starts, allow the engine to idle for a minimum of 30 seconds.
NOTE:
The engine may run rough until the air is forced
from all the fuel lines. NOTE:
A maximum blend of 5% biodiesel, meeting
ASTM specification D-975 may be used with
your Cummins diesel engine. (Chassis Cab
models not configured with B20 capability.)
A maximum blend of 20% biodiesel, meeting
ASTM specification D-7467 may be used with
your Cummins diesel engine. (Pickup models
and Chassis Cab models configured with B20
capability.)
Use of biodiesel mixture in excess of 20% can
negatively impact the fuel filter's ability to
separate water from the fuel, resulting in
high pressure fuel system corrosion or
damage.
Ethanol blends are not recommended or
approved for use with your Cummins diesel
engine.
In addition, commercially available fuel addi
-
tives are not necessary for the proper opera -
tion of your Cummins diesel engine.
INTERVENTION REGENERATION
S
TRATEGY — MESSAGE PROCESS FLOW
The Cummins diesel engine meets all
Environmental Protection Agency (EPA) Heavy
Duty Diesel Engine Emissions Standards,
resulting in one of the lowest emitting diesel
engines ever produced.
To achieve these emissions standards, your
vehicle is equipped with a state-of-the-art
engine and exhaust system. The engine and
exhaust after-treatment system work together
to achieve the EPA Heavy Duty Diesel Engine
Emissions Standards. These systems are
seamlessly integrated into your vehicle and
managed by the Cummins Powertrain Control
Module (PCM). The PCM manages engine
combustion to allow the exhaust system’s
catalyst to trap and burn Particulate Matter
(PM) pollutants, with no input or interaction on
your part.
If the engine is allowed to idle or the truck is
driven on low engine speed drive cycles for
more than two hours, the system will
automatically enter an emissions operating
mode that will increase the engine idle speed to
900 RPM (1050 RPM for Chassis Cab). While in
this mode, which is designed to help maintain
CAUTION!
Do not engage the starter motor for more
than 15 seconds at a time. Allow two minutes
between the cranking intervals.
WARNING!
Do not use alcohol or gasoline as a fuel
blending agent. They can be unstable under
certain conditions and be hazardous or
explosive when mixed with diesel fuel.
CAUTION!
Due to lack of lubricants in alcohol or
gasoline, the use of these fuels can cause
damage to the fuel system.
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456TECHNICAL SPECIFICATIONS
NOTE:
Intentional tampering with the emissions
control system can result in civil penalties being
assessed against you.
CARBON MONOXIDE WARNINGS
FUEL REQUIREMENTS – DIESEL ENGINE
Use good quality diesel fuel from a reputable
supplier in your vehicle. Federal law requires
that you must fuel this vehicle with Ultra Low
Sulfur Highway Diesel fuel (15 ppm Sulfur
maximum) and prohibits the use of Low Sulfur
Highway Diesel fuel (500 ppm Sulfur maximum)
to avoid damage to the emissions control
system.
For most year-round service, No. 2 diesel fuel
meeting ASTM (formerly known as the American
Society for Testing and Materials) specification
D-975 Grade S15 will provide good
performance. If the vehicle is exposed to
extreme cold (below 20°F or -7°C), or is
required to operate at colder-than-normal
conditions for prolonged periods, use climatized
No. 2 diesel fuel or dilute the No. 2 diesel fuel
with 50% No. 1 diesel fuel. This will provide
better protection from fuel gelling or
wax-plugging of the fuel filters. Diesel fuel is seldom completely free of water.
To prevent fuel system trouble, drain the
accumulated water from the fuel/water
separator using the fuel/water separator drain
provided on both fuel filters. If you buy good
quality fuel and follow the cold weather advice
above, fuel conditioners should not be required
in your vehicle. If available in your area, a high
cetane “premium” diesel fuel may offer
improved cold-starting and warm-up
performance.
WARNING!
Carbon monoxide (CO) in exhaust gases is
deadly. Follow the precautions below to
prevent carbon monoxide poisoning:
Do not inhale exhaust gases. They contain
carbon monoxide, a colorless and odorless
gas, which can kill. Never run the engine in
a closed area, such as a garage, and never
sit in a parked vehicle with the engine
running for an extended period. If the
vehicle is stopped in an open area with the
engine running for more than a short
period, adjust the ventilation system to
force fresh, outside air into the vehicle.
Guard against carbon monoxide with
proper maintenance. Have the exhaust
system inspected every time the vehicle is
raised. Have any abnormal conditions
repaired promptly. Until repaired, drive with
all side windows fully open.
WARNING!
Do not use alcohol or gasoline as a fuel
blending agent. They can be unstable under
certain conditions and hazardous or
explosive when mixed with diesel fuel.
CAUTION!
If the “Water in Fuel Indicator Light” remains
on, DO NOT START engine before you drain
the water from the fuel filter(s) to avoid
engine damage. Refer to “Draining Fuel/
Water Separator Filter” in “Servicing And
Maintenance” for further information.

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458TECHNICAL SPECIFICATIONS
Fuel Oxidation Stability — Must Use Fuel
Within Six Months Of Manufacture
Biodiesel fuel has poor oxidation stability which
can result in long term storage problems. Fuel
produced to approved ASTM standards, if
stored properly, provides for protection against
fuel oxidation for up to six months.
Fuel Water Separation — Must Use Mopar/
Cummins Approved Fuel Filter Elements
You must use Mopar/Cummins approved fuel
filter elements in both your engine mounted
filter and frame mounted filter.
Biodiesel fuel has a natural affinity to water and
water accelerates microbial growth. Your
Mopar/Cummins filtration system is designed
to provide adequate fuel water separation
capabilities.
Bio-Diesel Fuel Properties — Low Ambient
Temperatures
Biodiesel fuel may gel or solidify at low ambient
temperatures, which may pose problems for
both storage and operation. Precautions can be
necessary at low ambient temperatures, such
as storing the fuel in a heated building or a
heated storage tank, or using cold temperature
additives.
Fuel In Oil Dilution — Must Adhere To
Required Oil Change Interval
Fuel dilution of lubricating oil has been
observed with the use of biodiesel fuel. Fuel in
oil must not exceed 5%. To ensure this limit is
met your oil change interval must be
maintained to the following schedule:
Ram PickUp 2500/3500 Only — 15,000 Miles*
(*unless otherwise notified with a oil service
message)
CAUTION!

Under no circumstances should oil change
intervals exceed 15,000 miles (24 000 km)
pickup or 12,500 miles (20 000 km) chassis
cab if operation occurs with greater than 5%
biodiesel blends. Oil change intervals should
not exceed 6 months in either case. Failure
to comply with these Oil Change require -
ments for vehicles operating on biodiesel
blends up to B20 may result in premature
engine wear. Such wear is not covered by the
New Vehicle Limited Warranty.

B20 Biodiesel capable: The engine may
suffer severe damage if operated with
concentrations of Biodiesel higher than
20%.

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TECHNICAL SPECIFICATIONS459
FLUID CAPACITIES — GAS ENGINE
USMetric
Fuel (Approximate)
2500/3500 Shortbed Models 31 Gallons117 Liters
2500/3500 Longbed Models 32 Gallons121 Liters
2500/3500 Crew Cab Longbed Models — If Equipped 50 Gallons189 Liters
Engine Oil With Filter
6.4L Engine (We recommend you use SAE 0W-40 engine oil meeting the requirements of
FCA Material Standard MS-12633 for use in all operating temperatures.) 7 Quarts
6.6 Liters
Cooling System
6.4L Engine – (We recommend you use Mopar® Antifreeze/Coolant 10 Year/150,000
Mile (240,000 km) Formula that meets the requirements of FCA Material Standard
MS.90032.) 16.6 Quarts
15.7 Liters
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460TECHNICAL SPECIFICATIONS
FLUID CAPACITIES — DIESEL ENGINE
US Metric
Fuel (Approximate)
2500/3500 Standard Cab Longbed
Models 28 Gallons
106 Liters
2500/3500 Crew/Mega Cab
Shortbed Models 31 Gallons
117 Liters
2500/3500 Crew Cab Longbed
Models 32 Gallons
121 Liters
2500/3500 Crew Cab Longbed
Models — If Equipped 50 Gallons
189 Liters
Diesel Exhaust Fluid Tank 5.7 Gallons21 Liters
Engine Oil With Filter
6.7L Turbo Diesel Engine 12 Quarts11.4 Liters
Cooling System
6.7L Turbo Diesel Engine with
68RFE (Mopar Engine Coolant/
Antifreeze 10 Year/150,000 Mile
[240,000 km] Formula) 22.0 Quarts
20.8 Liters

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TECHNICAL SPECIFICATIONS461
FLUIDS AND LUBRICANTS — GAS ENGINE
ENGINE
Component Fluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use Mopar Antifreeze/Coolant 10 Year/150,000
Mile (240,000 km) Formula OAT (Organic Additive Technology).
Engine Oil – 6.4L For best performance and maximum protection under all types of
operating conditions, the manufacturer only recommends full synthetic
engine oils that meet the American Petroleum Institute (API) categories of
SN. The manufacturer recommends the use of Pennzoil Ultra 0W-40 or
equivalent Mopar engine oil meeting the requirements of FCA Material
Standard MS-12633 for use in all operating temperatures.
Engine Oil Filter We recommend you use Mopar brand Engine Oil Filters.
Spark Plugs We recommend you use Mopar Spark Plugs.
Fuel Selection – 6.4L Engines 89 Octane Recommended - 87 Octane Acceptable (R+M)/2, 0-15%
Ethanol (Do not use E-85).
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