octane DODGE RAM 2500 POWER WAGON 2008 3.G Owners Manual

Light will turn OFF, as long as no tire pressure is below
the low-pressure warning limit in any of the four active
road tires. The vehicle may need to be driven for up to 10
minutes above 15 mph (25 km/h) in order for the TPMS
to receive this information.
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:
²This device may not cause harmful interference.
²This device must accept any interference received, includ-
ing interference that may cause undesired operation.
The tire pressure sensors are covered under one of the
following licenses:
United States.....................KR5S120123
Canada........................2671-S120123
FUEL REQUIREMENTS
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 routine use
of premium gasoline is not recommended. The use of
premium gasoline will provide no benefit over high
quality regular and mid-grade gasolines, and in some
circumstances may result in poorer performance.
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.
5.7L Engines
STARTING AND OPERATING 357
5

MMT In Gasoline
MMT is a manganese-containing metallic additive that is
blended into some gasoline to increase octane. Gasolines
blended with MMT provide no performance advantage
beyond gasolines of the same octane number without
MMT. Gasolines blended with MMT reduce spark plug
life and reduce emission system performance. We recom-
mend that gasolines free of MMT be used in your vehicle.
The MMT content of gasoline may not be indicated on
the gasoline pump; therefore, you should ask your gaso-
line retailer whether or not his/her gasoline contains
MMT.
It is even more important to look for gasolines without
MMT in Canada because MMT can be used at levels
higher than allowed in the United States. MMT is pro-
hibited in Federal and California reformulated gasolines.
Sulfur In Gasoline
If you live in the northeast United States, your vehicle
may have been designed to meet California low emission
standards with Cleaner-Burning California reformulated
gasoline with low sulfur. If such fuels are not available in
states adopting California emission standards, your ve-
hicles will operate satisfactorily on fuels meeting federal
specifications, but emission control system performance
may be adversely affected. Gasoline sold outside of
California is permitted to have higher sulfur levels which
may affect the performance of the vehicle's catalytic
converter. This may cause the Check Engine or Service
Engine Soon light to illuminate. We recommend that you
try a different brand of unleaded gasoline having lower
sulfur to determine if the problem is fuel related prior to
returning your vehicle to an authorized dealer for ser-
vice.
STARTING AND OPERATING 359
5

²The use of fuel additives which are now being sold as
octane enhancers is not recommended. Many 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 emissions control
systems 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:
²Do 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.
²Guard against carbon monoxide with proper mainte-
nance. 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.
²Keep the liftgate closed when driving your vehicle to
prevent carbon monoxide and other poisonous ex-
haust gases from entering the vehicle.
STARTING AND OPERATING 361
5

FLUIDS AND CAPACITIES
U.S. Metric
Fuel
5.7L, 89 Octane
2500 Shortbed Models 34 gal. 128L
2500 Longbed Models 35 gal. 132L
Engine Oil (with filter)
5.7L Engine V-8 (SAE 5W-20, API Certified). For trucks operating
under a gross combined weight ratinglessthan 14,000 lbs.7.0 qts. 6.6L
5.7L Engine V-8 (SAE 5W-30, API Certified). For trucks operating
under a gross combined weight ratinggreaterthan 14,000 lbs.7.0 qts. 6.6L
Cooling System
5.7L (MopartAntifreeze/Coolant 5 Year/100,000 Mile Formula) 18.7 qts. 17.7L
464 MAINTAINING YOUR VEHICLE

FLUIDS, LUBRICANTS AND GENUINE PARTS
Engine
Component Fluids, Lubricants and Genuine Parts
Engine Coolant MopartAntifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hy-
brid Organic Additive Technology) P/N 5011764AB or equivalent.
Engine Oil (For trucks operating under a
gross combined weight ratinglessthan
14,000 lbs.)Use SAE 5W-20, API Certified, meeting material standard MS-6395.
5.7L Engine Oil (For trucks operating
under a gross combined weight rating
greaterthan 14,000 lbs.)Use SAE 5W-30, API Certified, meeting material standard MS-6395.
Engine Oil Filter MopartEngine Oil Filter, P/N 5281090 or equivalent.
Spark Plugs (5.7L Engine) REC14MCC4 (Gap 0.040º)
Fuel Selection (5.7L) 89 Octane Mid-Grade, (R+M)/2 Method Preferred (87 Octane Accept-
able)
MAINTAINING YOUR VEHICLE 465
7

Fluids, Lubricants and Genuine Parts.......... 465
Fog Lights.......................132,184,463
Fold Flat Load Floor..................... 166
Four Wheel Drive....................... 271
Four-Way Hazard Flasher.................. 390
Freeing A Stuck Vehicle................... 402
Front Axle (Differential)................... 434
Front Wheel Bearings..................... 439
Fuel................................. 357
Adding............................. 362
Filler Cap (Gas Cap).................... 363
Filter............................... 417
Gauge.............................. 189
Octane Rating......................357,465
Requirements......................357,464
Tank Capacity........................ 464
Fuses................................ 447
Garage Door Opener (HomeLinkt) ........... 150Gas Cap (Fuel Filler Cap)...............363,409
Gasoline (Fuel)......................... 357
Gasoline, Reformulated................... 358
Gauges............................... 179
Coolant Temperature.................... 181
Fuel................................ 189
Oil Pressure.......................... 180
Speedometer......................... 180
Tachometer.......................... 179
Voltmeter............................ 179
Gear Ranges........................263,269
Gear Ratios............................. 84
General Information.................18,120,357
Glass Cleaning.......................... 446
Gross Axle Weight Rating.................. 368
Gross Vehicle Weight Rating................ 367
Guide, Body Builders...................... 6
GVWR............................... 364
INDEX 491
10

Electric Powered....................... 91
Outside.............................. 90
Rearview............................. 88
Trailer Towing......................92,381
Modifications/Alterations, Vehicle............. 7
Monitor, Tire Pressure System............... 347
Mopar Parts......................... 411,479
Multi-Displacement Engine System........... 326
Multi-Function Control Lever............... 133
Navigation Radio........................ 227
Navigation System....................... 227
Noise Control
Maintenance.......................... 439
Tampering Prohibited................439,440
Noise Emission Warranty.................. 441
Occupant Restraints....................... 34
Octane Rating, Gasoline (Fuel).............. 357Odometer..........................182,189
Trip .............................182,189
Off-Pavement Driving (Off-Road)............ 281
Off-Road Driving (Off-Pavement)............ 281
Oil Change Indicator..................... 183
Oil Change Indicator, Reset................. 183
Oil, Engine.........................413,465
Capacity............................ 464
Change Interval....................... 414
Dipstick............................. 413
Disposal............................ 415
Filter............................415,465
Filter Disposal........................ 415
Identification Logo..................... 414
Materials Added to..................... 415
Pressure Gauge....................... 180
Recommendation...................414,464
Synthetic............................ 415
Viscosity..........................414,464
INDEX 495
10