2016 Ram 2500 fuel cap

Tire Size
The tire size on the Vehicle Certification Label represents
the actual tire size on your vehicle. Replacement tires
must be equal to the load capacity of this tire size.
Rim Size
This is the rim size that is appropriate for the tire size
listed.
Inflation Pressure
This is the cold tire inflation pressure for your vehicle for
all loading conditions up to full GAWR.
Curb Weight
The curb weight of a vehicle is defined as the total weight
of the vehicle with all fluids, including vehicle fuel, at full
capacity conditions, and with no occupants or cargo
loaded into the vehicle. The front and rear curb weightvalues are determined by weighing your vehicle on a
commercial scale before any occupants or cargo are
added.
Loading
The actual total weight and the weight of the front and
rear of your vehicle at the ground can best be determined
by weighing it when it is loaded and ready for operation.
The entire vehicle should first be weighed on a commer-
cial scale to insure that the GVWR has not been exceeded.
The weight on the front and rear of the vehicle should
then be determined separately to be sure that the load is
properly distributed over the front and rear axle. Weigh-
ing the vehicle may show that the GAWR of either the
front or rear axles has been exceeded but the total load is
within the specified GVWR. If so, weight must be shifted
from front to rear or rear to front as appropriate until the
specified weight limitations are met. Store the heavier
688 STARTING AND OPERATING

MAINTAINING YOUR VEHICLE
CONTENTS
ENGINE COMPARTMENT — 3.6L ..........790
 ENGINE COMPARTMENT — 5.7L ..........791
 ENGINE COMPARTMENT — 6.4L ..........792
 ONBOARD DIAGNOSTIC SYSTEM (OBD II) . . .793
▫ Onboard Diagnostic System (OBD II)
Cybersecurity ....................... .793
▫ Loose Fuel Filler Cap Message ............794
 EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS ......................... .795
 REPLACEMENT PARTS ..................796 
DEALER SERVICE ..................... .797
 MAINTENANCE PROCEDURES ...........797
▫ Engine Oil ......................... .798
▫ Engine Oil Filter ..................... .802
▫ Engine Air Cleaner Filter ................802
▫ Accessory Drive Belt Inspection ...........806
▫ Maintenance-Free Battery ...............808
▫ Air Conditioner Maintenance .............809
▫ Front Driveshaft Lubrication — 2500/3500
(Four-Wheel Drive Models Only) ..........810
7

access this information to assist with the diagnosis and
service of your vehicle and emissions system.
WARNING!
•ONLY an authorized service technician should con-
nect equipment to the OBD II connection port in
order to diagnose or service your vehicle.
• If unauthorized equipment is connected to the
OBD II connection port, such as a driver-behavior
tracking device, it may:
• Be possible that vehicle systems, including
safety related systems, could be impaired or a
loss of vehicle control could occur that may result
in an accident involving serious injury or death.
• Access, or allow others to access, information
stored in your vehicle systems, including per-
sonal information. For further information, refer to “Privacy Practices — If
Equipped With Uconnect 8.4 Radio” and “Uconnect
CyberSecurity” in “All About Uconnect Access” in your
Owner ’s Manual Radio Supplement and “Cybersecurity”
in “Understanding Your Instrument Panel” in your Own-
er ’s Manual on the DVD.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines
that the fuel filler cap is loose, improperly
installed, or damaged, a loose gascap indicator
will display in the EVIC/DID telltale display
area. Refer to “Electronic Vehicle Information Center
(EVIC)” or “Driver Information Display (DID)” in “Un-
derstanding Your Instrument Panel” for further informa-
tion. Tighten the fuel filler cap properly and push the
794 MAINTAINING YOUR VEHICLE

SELECT button to turn off the message. If the problem
continues, the message will appear the next time the
vehicle is started.
A loose, improperly installed, or damaged fuel filler cap
may also turn on the Malfunction Indicator Light (MIL).
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.For states that require an Inspection and Mainte-
nance (I/M), this check verifies the “Malfunction
Indicator Light (MIL)” is functioning and is not
on when the engine is running, and that the OBD II
system is ready for testing.
Normally, the OBD II system will be ready. The OBD II
system may notbe ready if your vehicle was recently serviced, recently had a dead battery or a battery replace-
ment. If the OBD II system should be determined not
ready for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition actuated test, which
you can use prior to going to the test station. To check if
your vehicle’s OBD II system is ready, you must do the
following:
1. Cycle the ignition switch to the ON position, but do
not crank or start the engine.
NOTE: If you crank or start the engine, you will have to
start this test over.
2. As soon as you cycle the ignition switch to the ON position, you will see the “Malfunction Indicator Light
(MIL)” symbol come on as part of a normal bulb
check.
7
MAINTAINING YOUR VEHICLE 795

American Petroleum Institute (API) Engine Oil
Identification Symbol
This symbol means that the oil has
been certified by the American
Petroleum Institute (API). The
manufacturer only recommends
API Certified engine oils.
This symbol certifies 0W-20, 5W-
20, 0W-30, 5W-30 and 10W-30 en-
gine oils.
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.
Engine Oil Viscosity — 3.6L Engines (1500 Models
Only)
MOPAR SAE 5W-20 engine oil approved to FCA Material
Standard MS-6395 or equivalent Pennzoil or Shell Helix
is recommended for all operating temperatures. This
engine oil improves low temperature starting and vehicle
fuel economy.
The engine oil filler cap also shows the recommended
engine oil viscosity for your vehicle. For information on
engine oil filler cap location, refer to “Engine Compart-
ment” in “Maintaining Your Vehicle” for further informa-
tion.
NOTE:MOPAR SAE 5W-30 engine oil approved to FCA
Material Standard MS-6395 may be used when SAE
5W-20 engine oil meeting MS-6395 is not available.
800 MAINTAINING YOUR VEHICLE

Engine Oil Viscosity — 5.7L Engine (1500/2500/3500
Models)
MOPAR SAE 5W-20 engine oil approved to FCA Material
Standard MS-6395 such as Pennzoil, Shell Helix or
equivalent is recommended for all operating tempera-
tures. This engine oil improves low temperature starting
and vehicle fuel economy.
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 Com-
partment” illustration in this section.
Lubricants which do not have both the engine oil certi-
fication mark and the correct SAE viscosity grade num-
ber should not be used.NOTE:
For 2500/3500 trucks with a 5.7L engine operat-
ing under a gross combined weight rating of 14,000 lbs
(6 350 kg) or greater, SAE 5W-30 meeting FCA Material
Standard MS-6395 engine oil is recommended for all
operating temperatures.
Engine Oil Viscosity — 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 tempera-
tures.
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 Com-
partment” in this section.
Lubricants which do not have both the engine oil certi-
fication mark and the correct SAE viscosity grade num-
ber should not be used.
7
MAINTAINING YOUR VEHICLE 801

FLUID CAPACITIES
U.S.Metric
Fuel (Approximate)
1500 Regular Cab Shortbed/Crew Quad Cab Models 26 Gallons98 Liters
1500 Regular Cab Longbed/Crew Quad Cab Models (Optional) 32 Gallons 121 Liters
2500/3500 Shortbed Models 31 Gallons117 Liters
2500/3500 Longbed Models 32 Gallons121 Liters
Engine Oil With Filter
3.6L Engine (We recommend you use SAE 5W-20, API Certified) 6 Quarts5.6 Liters
5.7L Engines (We recommend you use SAE 5W-20, API Certified) 7 Quarts 6.6 Liters
5.7L Engine (We recommend you use SAE 5W-30, API Certified),
for 2500/3500 trucks operating under a gross combined weight
rating greater than 14,000 lbs (6 350 kg). 7 Quarts
6.6 Liters
6.4L Engines (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
864 MAINTAINING YOUR VEHICLE

Hazard Warning Flasher..................727
Jump Starting ......................... .771
Tow Hooks ........................... .777
Emission Control System Maintenance ..........795
Engine ............................. .791, 792
Air Cleaner .......................... .802
Block Heater ......................... .486
Break-In Recommendations ................117
Compartment ......................... .790
Compartment Identification .........790, 791, 792
Coolant (Antifreeze) .....................866
Exhaust Gas Caution .................119,680
Flooded, Starting ...................... .480
Fuel Requirements ...................675, 864
Jump Starting ......................... .771
Oil .......................... .798, 864, 866
Oil Filler Cap ......................... .801
Oil Filter ............................ .802
Oil Selection ...................... .799, 864Oil Synthetic
......................... .802
Overheating .......................... .727
Engine Oil Viscosity ....................800, 801
Engine Oil Viscosity Chart ...................800
Enhanced Accident Response Feature ............81
Entry System, Illuminated ....................24
Ethanol ............................ .677, 681
Event Data Recorder ........................84
Exhaust Gas Caution ....................119,680
Exhaust System .......................119,816
Exterior Lighting ......................... .171
Exterior Lights .......................... .122
Filters Air Cleaner .......................... .802
Engine Oil ........................ .802, 866
Engine Oil Disposal .....................802
Flashers Turn Signal .....................122, 181, 326
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INDEX 901