2009 Ram 1500 fuel pressure

As an added safety feature, your vehicle has been
equipped with a Tire Pressure Monitoring System
(TPMS) that illuminates a low tire pressure telltale when
one or more of your tires is significantly under-inflated.
Accordingly, when the low tire pressure telltale illumi-
nates, you should stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes the tire to
overheat and can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life, and may affect
the vehicle’s handling and stopping ability.
Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver ’s responsibility to
maintain correct tire pressure, even if under-inflation has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the system is not
operating properly. The TPMS malfunction indicator is
combined with the low tire pressure telltale. When the
system detects a malfunction, the telltale will flash for
approximately one minute and then remain continuously
illuminated. This sequence will continue upon subse-
quent vehicle start-ups as long as the malfunction exists.
When the malfunction indicator is illuminated, the sys-
tem may not be able to detect or signal low tire pressure
as intended. TPMS malfunctions may occur for a variety
of reasons, including the installation of replacement or
alternate tires or wheels on the vehicle that prevent the
TPMS from functioning properly. Always check the
TPMS malfunction telltale after replacing one or more
tires or wheels on your vehicle, to ensure that the
replacement or alternate tires and wheels allow the TPMS
to continue to function properly.
238 UNDERSTANDING YOUR INSTRUMENT PANEL

If jump starting is required, refer to “Jump Starting
Procedures” in section 6 of this manual.
33. Electronic Stability Program (ESP) Indicator Light
/ Brake Assist System (BAS) Warning LightThe malfunction light for the Electronic Stabil-
ity Program (ESP) is combined with Brake
Assist System (BAS). The yellow “ESP/BAS
Warning Light” comes on when the ignition
switch is turned to the “ON” position. They should go
out with the engine running. If the “ESP/BAS Warning
Light” comes on continuously with the engine running, a
malfunction has been detected in either the ESP or the
BAS system. If this light remains on after several ignition
cycles, and the vehicle has been driven several miles
(kilometers) at speeds greater than 30 mph (48 km/h), see
an authorized dealer as soon as possible. For vehicles equipped with a premium cluster this indi-
cator will display in the Electronic Vehicle Information
Center (EVIC). Refer to ”Electronic Vehicle Information
Center (EVIC) — If Equipped” in this section for more
information.
34. Check Gauges
This light illuminates when the voltmeter, engine oil
pressure or engine temperature gauges indicate a reading
either too high or too low. Examine the gauges carefully,
and follow the instructions contained below for each
indicated problem.
NOTE:
When the ignition switch is turned to OFF, the
fuel gauge, voltmeter, oil pressure and engine tempera-
ture gauges may not show accurate readings. When the
engine is not running, turn the ignition switch to ON to
obtain accurate readings.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 243

EVIC Displays
When the appropriate conditions exist, the EVIC displays
the following messages:
•ECO (Fuel Saver Indicator) — If Equipped
•Door(s) Ajar (with a single chime, if vehicle is in
motion)
•Hood Ajar (if equipped with hood switch)
•Key In Ignition
•Turn Signal On
•RKE Battery Low
•LOW WASHER FLUID
•Oil Change Required
•Left Front Turn Signal Light Out
•Left Rear Turn Signal Light Out
•Right Front Turn Signal Light Out
•Right Rear Turn Signal Light Out
•Park Assist Disabled
•Service Park Assist System
•Personal Settings Not Available — Vehicle Not in Park
EVIC Warning Lights
•
Door AjarThis light will turn on to indicate that one or
more door may be ajar.
•Oil Pressure Warning LightThis light indicates low engine oil pressure. The
light should turn on momentarily when the engine
is started. If the light turns on while driving, stop the
vehicle and shut off the engine as soon as possible. A
chime will sound for four minutes when this light turns
on.
246 UNDERSTANDING YOUR INSTRUMENT PANEL

▫Tire Inflation Pressures ................ 372
▫ Tire Pressures For High Speed Operation . . . 374
▫ Radial Ply Tires ..................... 374
▫ Tire Spinning ....................... 374
▫ Tread Wear Indicators ................. 375
▫ Life Of Tire ........................ 376
▫ Replacement Tires .................... 376
 Supplemental Tire Pressure Information —
If Equipped .......................... 377
 Tire Chains .......................... 378
 Snow Tires .......................... 379
 Tire Rotation Recommendations ........... 379
 Tire Pressure Monitor System (TPMS) ....... 381
▫ Tire Pressure Monitor System Components . . 383 ▫
General Information .................. 385
 Fuel Requirements ..................... 386
▫ 3.7L And 4.7L Engine ................. 386
▫ 5.7L Engine ........................ 386
▫ Reformulated Gasoline ................ 387
▫ Gasoline/Oxygenate Blends ............. 387
▫ E-85 Usage In Non-Flex Fuel Vehicles ...... 388
▫ MMT In Gasoline .................... 388
▫ Materials Added To Fuel ............... 389
▫ Fuel System Cautions ................. 389
▫ Carbon Monoxide Warnings ............ 390
 Flexible Fuel (4.7L Engine Only) —
If Equipped .......................... 390
▫ E-85 General Information ............... 390
▫ Ethanol Fuel (E-85) ................... 392
5
STARTING AND OPERATING 307

WARNING! (Continued)
•Unequal tire pressures from one side of the ve-
hicle to the other can cause the vehicle to drift to
the right or left.
•Always drive with each tire inflated to the recom-
mended cold tire inflation pressure.
Economy
Improper inflation pressures can cause uneven wear
patterns to develop across the tire tread. These abnormal
wear patterns will reduce tread life resulting in a need for
earlier tire replacement. Under-inflation also increases
tire rolling resistance and results in higher fuel
consumption.
Ride Comfort and Vehicle Stability
Proper tire inflation contributes to a comfortable ride.
Over-inflation produces a jarring and uncomfortable
ride.
Tire Inflation Pressures
The proper cold tire inflation pressure is listed on the
driver’s side “B” Pillar.
Some vehicles may have Supplemental Tire Pressure
Information for vehicle loads that are less than the
maximum loaded vehicle condition. These pressure con-
ditions will be found in the “Supplemental Tire Pressure
Information” section of this manual.
The pressure should be checked and adjusted as well as
inspecting for signs of tire wear or visible damage at least
once a month. Use a good quality pocket-type gauge to
check tire pressure. Do not make a visual judgement
when determining proper inflation. Radial tires may look
properly inflated even when they are under-inflated.
372 STARTING AND OPERATING

NOTE:
•The TPMS is not intended to replace normal tire care
and maintenance, nor to provide warning of a tire
failure or condition.
•The TPMS should not be used as a tire pressure gauge
while adjusting your tire pressure.
•Driving on a significantly underinflated tire causes the
tire to overheat and can lead to tire failure. Underin-
flation also reduces fuel efficiency and tire tread life,
and may affect the vehicle’s handling and stopping
ability.
•The TPMS is not a substitute for proper tire mainte-
nance, and it is the driver ’s responsibility to maintain
correct tire pressure, even if under-inflation has not
reached the level to trigger illumination of the “Tire
Pressure Monitoring Telltale Light.”
•Seasonal temperature changes will affect tire pressure,
and the TPMS will monitor the actual tire pressure in
the tire.
Tire Pressure Monitor System Components
The TPMS uses wireless technology with wheel rim
mounted electronic sensors to monitor tire pressure lev-
els. Sensors, mounted to each wheel as part of the valve
stem transmit tire pressure readings to the Receiver
Module.
NOTE:It is particularly important for you to check the
tire pressure in all of your tires regularly and to maintain
the proper pressure.
The TPMS consists of the following components:
•Receiver Module
•Four Wheel Sensors
•Tire Pressure Monitoring Telltale Lamp
5
STARTING AND OPERATING 383

The tire pressure sensors are covered under one of the
following licenses:
United States..................... KR5S120123
Canada ........................ 2671-S120123
FUEL REQUIREMENTS
3.7L and 4.7L Engine
All engines (except 5.7L engines) are de-
signed to meet all emissions regulations
and provide excellent fuel economy and
performance when using high quality un-
leaded “regular” gasoline having an oc-
tane rating of 87. The use of premium
gasoline is not recommended, as it will not provide any
benefit over regular gasoline in these engines.
5.7L Engine
The 5.7L engine is designed to meet all
emissions regulations and provide satisfac-
tory fuel economy and performance when
using high quality unleaded gasoline hav-
ing an octane range of 87 to 89. The manu-
facturer recommends the use of 89 octane
for optimum performance. The use of premium gasoline
is not recommended, as it will not provide any benefit
over regular gasoline in these engines.
Light spark knock at low engine speeds is not harmful to
your engine. However, continued heavy spark knock at
high speeds can cause damage and immediate service is
required. Poor quality gasoline can cause problems such
as hard starting, stalling, and hesitations. If you experi-
ence these symptoms, try another brand of gasoline
before considering service for the vehicle.
386 STARTING AND OPERATING

CAUTION!
Overfilling or underfilling the crankcase will cause
oil aeration or loss of oil pressure. This could damage
your engine.
Change Engine Oil
Refer to the “Maintenance Schedule” in Section 8 for the
proper maintenance intervals.
Engine Oil Selection
For best performance and maximum protection under all
types of operating conditions, the manufacturer only
recommends engine oils that are API Certified and meet
the requirements of Chrysler Material Standard MS-6395.
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.
Engine Oil Viscosity (SAE Grade)
SAE 5W-20 engine oil 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 engine. For information on engine oil filler cap
location, refer to “Engine Compartment” in this section.
7
MAINTAINING YOUR VEHICLE 449