2008 DODGE MAGNUM SRT octane

General Information
This device complies with Part 15 of the FCC rules and
RSS 210 of Industry Canada. Operation is subject to the
following conditions:
•This device may not cause harmful interference.
•This device must accept any interference received,
including interference that may cause undesired op-
eration.
The tire pressure sensors are covered under one of the
following licenses:
United States.....................KR5S120123
Canada........................2671-S120123
FUEL REQUIREMENTS
6.1L Engine
The 6.1L Engine is designed to meet all
emissions regulations and provide excel-
lent fuel economy and performance when
using high-quality premium unleaded
gasoline with an octane rating of 91 or
higher.
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.
STARTING AND OPERATING 337
5

manufacturer. While MTBE is an oxygenate made from
methanol, it does not have the negative effects of metha-
nol.
MMT In Gasoline
MMT is a manganese-containing metallic additive that is
blended into some gasoline to increase octane. Gasoline
blended with MMT provides no performance advantage
beyond gasoline of the same octane number without
MMT. Gasoline blended with MMT reduces spark plug
life and reduces emissions system performance in some
vehicles. The manufacturer recommends that gasoline
without MMT be used in your vehicle. The MMT content
of gasoline may not be indicated on the gasoline pump,
therefore, you should ask your gasoline retailer whether
the gasoline contains MMT. It is even more important to
look for gasoline without MMT in Canada, because MMT
can be used at levels higher than those allowed in the
United States. MMT is prohibited in Federal and Califor-
nia reformulated gasoline.
Materials Added to Fuel
All gasoline sold in the United States is required to
contain effective detergent additives. Use of additional
detergents or other additives is not needed under normal
conditions and they would result in additional cost.
Therefore, you should not have to add anything to the
fuel.
Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s
performance:
•The use of leaded gas is prohibited by Federal law.
Using leaded gasoline can impair engine performance
and damage the emissions control system.
STARTING AND OPERATING 339
5

•An out-of-tune engine or certain fuel or ignition mal-
functions can cause the catalytic converter to overheat.
If you notice a pungent burning odor or some light
smoke, your engine may be out of tune or malfunc-
tioning and may require immediate service. Contact
your authorized dealer for service assistance.
•The use of fuel additives, which are now being sold as
octane enhancers, is not recommended. Most of these
products contain high concentrations of methanol.
Fuel system damage or vehicle performance problems
resulting from the use of such fuels or additives is not
the responsibility of the manufacturer.
NOTE:Intentional tampering with the emissions con-
trol system can result in civil penalties being assessed
against you.
Carbon Monoxide Warnings
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.
340 STARTING AND OPERATING

FLUIDS, LUBRICANTS, AND GENUINE PARTS
Engine
Component Fluids, Lubricants, and Genuine Parts
Engine Coolant MoparAntifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid Or-
ganic Additive Technology) or equivalent
Engine Oil (6.1L) 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 SM or SM/CF, and
meet the requirements of DaimlerChrysler Material Standard MS-10725. The
manufacturer recommends the use of a full synthetic engine oil, such as Mo-
bil 1SAE 0W-40 or equivalent. For additional information, refer to the “En-
gine Oil Selection” and “Engine Oil Viscosity (SAE Grade)” in the “Mainte-
nance Procedures” section of this manual.
Oil Filter (6.1L) Mopar05281090 or equivalent
Spark Plugs (6.1L) PLZTR5A-13 (Gap.050 in [1.27 mm])
Fuel Selection (6.1L) Premium Unleaded 91 Octane Only or higher
430 MAINTAINING YOUR VEHICLE

Ethanol............................. 338
Filler Cap (Gas Cap).................... 341
Filter ............................... 389
Gasoline............................ 337
Gauge.............................. 175
Hoses.............................. 403
Materials Added....................... 339
Methanol............................ 338
Octane Rating......................337,430
Requirements......................... 337
Specifications......................... 430
Tank Capacity........................ 429
Fuel System Caution..................... 342
Fueling ............................... 341
Fuses................................ 413
Garage Door Opener (HomeLink) ........... 143
Gas Cap (Fuel Filler Cap)...............341,382Gasoline, Clean Air...................... 338
Gasoline (Fuel)......................... 337
Gasoline, Reformulated................... 338
Gauges
Coolant Temperature.................... 176
Fuel................................ 175
Speedometer......................... 175
Tachometer.......................... 175
General Information............ 18,24,113,291,337
General Maintenance..................... 384
Glass Cleaning.......................... 411
GrossAxleWeightRating ...............344,348
Gross Vehicle Weight Rating.............344,347
Ground Clearance....................... 361
GVWR ............................... 344
Hands-Free Phone (UConnect™)........ 87,225,226
Hard Drive (HDD)....................205,225
INDEX 459
10

Vanity ............................... 86
Modifications/Alterations, Vehicle............. 7
Monitor, Tire Pressure System............... 327
Mopar Parts.........................384,446
MP3 Player.........................205,225
MTBE/ETBE........................... 338
Multi-Function Control Lever............... 129
Navigation Radio........................ 225
Navigation System....................... 225
New Vehicle Break-In Period................ 73
Occupant Restraints....................... 38
Octane Rating, Gasoline (Fuel)............337,430
Odometer............................. 175
Trip ................................ 175
Oil, Engine.........................385,430
Capacity............................ 429Change Interval....................... 386
Checking............................ 385
Dipstick............................. 385
Disposal............................ 387
Filter ............................387,430
Filter Disposal........................ 387
Materials Added to..................... 387
Recommendation...................386,429
Viscosity..........................386,429
Oil Filter, Change........................ 387
Oil Filter, Selection....................... 387
Onboard Diagnostic System..............381,382
Opener, Garage Door (HomeLink) ........... 143
Operating Precautions.................... 381
Outside Rearview Mirrors.................. 84
Overhead Console....................... 142
Overheating, Engine...................... 364
Owner’s Manual (Operator Manual).......... 447
464 INDEX