fuel additives RAM PROMASTER 2021 Owners Manual

266TECHNICAL SPECIFICATIONS
REFORMULATED GASOLINE
Many areas of the country require the use of
cleaner burning gasoline referred to as
“reformulated gasoline”. Reformulated
gasoline contains oxygenates and are
specifically blended to reduce vehicle
emissions and improve air quality.
The use of reformulated gasoline is
recommended. Properly blended reformulated
gasoline will provide improved performance
and durability of engine and fuel system
components.
MATERIALS ADDED TO FUEL
Besides using unleaded gasoline with the
proper octane rating, gasolines that contain
detergents, corrosion and stability additives are
recommended. Using gasolines that have these
additives will help improve fuel economy,
reduce emissions, and maintain vehicle
performance.
Designated TOP TIER Detergent
Gasoline contains a higher level of
detergents to further aide in
minimizing engine and fuel system
deposits. When available, the usage of
TOP TIER Detergent gasoline is recommended. Visit www.toptiergas.com for a list of TOP TIER
Detergent Gasoline Retailers.
Indiscriminate use of fuel system cleaning
agents should be avoided. Many of these
materials intended for gum and varnish
removal may contain active solvents or similar
ingredients. These can harm fuel system gasket
and diaphragm materials.
GASOLINE/OXYGENATE BLENDS
Some fuel suppliers blend unleaded gasoline
with oxygenates such as ethanol. Problems that result from using gasoline
containing more than 15% ethanol (E-15) or
gasoline containing methanol are not the
responsibility of the manufacturer and may void
or not be covered under New Vehicle Limited
Warranty.
DO NOT USE E-85 IN NON-FLEX FUEL
V
EHICLES
Non-Flex Fuel Vehicles (FFV) are compatible
with gasoline containing up to 15% ethanol
(E-15). Use of gasoline with higher ethanol
content may void the New Vehicle Limited
Warranty.
If a Non-FFV vehicle is inadvertently fueled with
E-85 fuel, the engine will have some or all of
these symptoms:
Operate in a lean mode.
OBD II Malfunction Indicator Light on.
Poor engine performance.
Poor cold start and cold drivability.
Increased risk for fuel system component
corrosion.
CAUTION!
DO NOT use E-85, gasoline containing
methanol, or gasoline containing more than
15% ethanol (E-15). Use of these blends may
result in starting and drivability problems,
damage critical fuel system components,
cause emissions to exceed the applicable
standard, and/or cause the Malfunction
Indicator Light to illuminate. Please observe
pump labels as they should clearly
communicate if a fuel contains greater than
15% ethanol (E-15).

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TECHNICAL SPECIFICATIONS267
(Continued)
CNG AND LP FUEL SYSTEM
M
ODIFICATIONS
Modifications that allow the engine to run on
Compressed Natural Gas (CNG) or Liquid
Propane (LP) may result in damage to the
engine, emissions, and fuel system
components. Problems that result from running
CNG or LP are not the responsibility of the
manufacturer and may void or not be covered
under the New Vehicle Limited Warranty.
MMT IN GASOLINE
Methylcyclopentadienyl Manganese Tricarbonyl
(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. MMT is prohibited in Federal and
California reformulated gasoline.
FUEL SYSTEM CAUTIONS
NOTE:
Intentional tampering with the emissions
control system can result in civil penalties being
assessed against you.
CAUTION!
Follow these guidelines to maintain your
vehicle’s performance:
The use of leaded gasoline is prohibited by
Federal law. Using leaded gasoline can
impair engine performance and damage
the emissions control system.
An out-of-tune engine or certain fuel or igni
-
tion malfunctions 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 an 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 perfor -
mance problems resulting from the use of
such fuels or additives is not the responsi -
bility of the manufacturer and may void or
not be covered under the New Vehicle
Limited Warranty.
CAUTION! (Continued)
9

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275
INDEX
A
Adding Engine Coolant (Antifreeze)............... 224Adding Washing Fluid.................................... 217Additives, Fuel............................................... 266Advance Phone Connectivity......................... 121Air Bag........................................................... 174Air Bag Operation...................................... 175Air Bag Warning Light................................ 173Enhanced Accident Response...................210Event Data Recorder (EDR)....................... 210If Deployment Occurs................................ 178Maintaining Your Air Bag System.............. 179Maintenance............................................. 179Side Air Bags............................................. 175Transporting Pets...................................... 187Air Bag Light..................................48, 173, 187Air Cleaner, Engine
(Engine Air Cleaner Filter).............................. 219Air Conditioner Maintenance......................... 219Air Conditioner Refrigerant.................. 219, 220Air Conditioner System.................................. 219Air Conditioning Filter............................. 35, 220Air Conditioning, Operating Tips................ 34, 35Air Filter......................................................... 219Air PressureTires.......................................................... 249
AlarmSecurity Alarm...................................... 13, 50Alarm SystemSecurity Alarm............................................. 13Alterations/ModificationsVehicle........................................................... 7Antifreeze (Engine Coolant)................. 223, 268Disposal................................................... 225Anti-Lock Brake System (ABS)...................... 149Anti-Lock Warning Light................................... 53Assist, Hill Start............................................. 153Audio Settings............................................... 107Audio Systems (Radio)..................................... 88Auto Down Power Windows............................. 39Auto Up Power Windows.................................. 39Automatic Door Locks...................................... 15Automatic Transmission.........................60, 227Adding Fluid.............................................. 227Fluid And Filter Change............................ 227Fluid Change............................................ 227Fluid Level Check............................ 226, 227Fluid Type........................................ 226, 270Special Additives...................................... 227AUX Cord.......................................................... 37Auxiliary Driving Systems.............................. 155
B
Battery................................................... 48, 217Charging System Light.................................48Keyless Key Fob Replacement....................11Belts, Seat.................................................... 187Blind Spot Monitoring................................... 155BluetoothConnecting To A Particular Mobile PhoneOr Audio Device After Pairing
................ 116Body Builders Guide........................................... 7Body Mechanism Lubrication........................ 221B-Pillar Location............................................ 245Brake Assist System..................................... 150Brake Control System, Electronic.................. 150Brake Fluid........................................... 226, 270Brake System....................................... 226, 264Anti-Lock (ABS)......................................... 149Fluid Check............................................... 226Master Cylinder........................................ 226Parking........................................................59Warning Light...............................................49Brake, Parking.................................................59Brake/Transmission Interlock..........................60Bulb Replacement........................................ 235Bulbs, Light.......................................... 188, 23511

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277
Emergency, In Case Of Freeing Vehicle When Stuck
...................... 208Jacking...................................................... 190Jump Starting............................................ 203Emission Control System Maintenance........... 56Engine........................................................... 215Air Cleaner................................................. 219Block Heater............................................... 58Break-In Recommendations........................ 58Checking Oil Level..................................... 216Compartment............................................ 215Compartment Identification...................... 215Coolant (Antifreeze)......................... 223, 268Cooling...................................................... 223Exhaust Gas Caution................................. 189Fails To Start............................................... 57Flooded, Starting......................................... 57Fuel Requirements.......................... 265, 268Jump Starting............................................ 203Oil.................................................... 218, 268Oil Filler Cap.............................................. 215Oil Filter..................................................... 219Oil Selection.................................... 218, 268Oil Synthetic.............................................. 218Overheating............................................... 206Starting....................................................... 57Enhanced Accident Response Feature..........210Entry System, Illuminated................................ 30
Ethanol......................................................... 266Exhaust Gas Cautions................................... 189Exhaust System................................... 189, 221Exterior Lights.........................................26, 188
F
FiltersAir Cleaner
................................................ 219Air Conditioning..................................35, 220Engine Oil........................................ 219, 268Engine Oil Disposal................................... 218FlashersHazard Warning........................................ 190Turn Signals.......................................54, 188Flat Tire Changing................................ 240, 253Flat Tire Stowage................................. 240, 253Flooded Engine Starting................................... 57Fluid Capacities............................................ 268Fluid Leaks................................................... 189Fluid Level ChecksAutomatic Transmission........................... 227Brake........................................................ 226Cooling System......................................... 223Engine Oil................................................. 216Power Steering............................................ 67Fog Lights........................................................ 27Fold-Flat Seats................................................. 15Forward Collision Warning............................ 159
Four-Way Hazard Flasher.............................. 190Freeing A Stuck Vehicle................................. 208Fuel............................................................... 265Additives................................................... 266Clean Air................................................... 266Ethanol..................................................... 266Filler Cap (Gas Cap).....................................75Gasoline................................................... 265Materials Added....................................... 266Methanol.................................................. 266Octane Rating.................................. 265, 268Requirements.................................. 265, 268Tank Capacity........................................... 268Fuses............................................................ 228
G
Gas Cap (Fuel Filler Cap)...........................75, 76Gasoline, Clean Air........................................ 266Gasoline, Reformulated................................ 266Gear Ranges....................................................62Gear Selector Override.................................. 207Glass Cleaning.............................................. 263Gross Axle Weight Rating.......................... 76, 78Gross Vehicle Weight Rating.....................76, 78GuideBody Builders................................................. 7GVWR...............................................................7611

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