2018 Ram ProMaster City octane

After 25 miles (40 km), check the lug nut/bolt torque to be
sure that all the lug nuts/bolts are properly seated against
the wheel.
WARNING!
To avoid the risk of forcing the vehicle off the jack, do
not tighten the lug nuts fully until the vehicle has been
lowered. Failure to follow this warning may result in
personal injury.
FUEL REQUIREMENTS
2.4L Engine
All available gasoline engines are de-
signed to meet all emissions regulations
and provide excellent fuel economy and
performance when using high quality
unleaded “regular” gasoline having a
octane rating of 87 using the (R+M)/2
method. The use of premium gasoline is
not recommended, as it will not provide any benefit over
regular gasoline in these engines.
While operating on gasoline with an octane number of 87,
hearing a light knocking sound from the engine is not a
cause for concern. However, if the engine is heard making
a heavy knocking sound, see your dealer immediately. Use
of gasoline with an octane number lower than 87 can cause
engine failure and may void or not be covered by the New
Vehicle Limited Warranty.
Poor quality gasoline can cause problems such as hard
starting, stalling, and hesitations. If you experience these
symptoms, try another brand of gasoline before consider-
ing service for the vehicle.
Torque Patterns
292 TECHNICAL SPECIFICATIONS

CNG And LP Fuel System Modifications
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 compo-
nents. 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. Gaso-
line 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.
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 Gaso-
line contains a higher level of detergents
to further aide in minimizing engine
and fuel system deposits. When avail-
able, 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 dia-
phragm materials.
294 TECHNICAL SPECIFICATIONS

Fuel System Cautions
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 perfor-
mance and damage the emissions control system.
• An out-of-tune engine or certain fuel or ignition
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
malfunctioning 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 metha-
nol. Fuel system damage or vehicle performance
problems resulting from the use of such fuels or
additives is not the responsibility of the manufac-
turer and may void or not be covered under the New
Vehicle Limited Warranty. NOTE:
Intentional tampering with the emissions control
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 mon-
oxide 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.
• Guard against carbon monoxide with proper main-
tenance. Have the exhaust system inspected every
time the vehicle is raised. Have any abnormal condi-
tions repaired promptly. Until repaired, drive with
all side windows fully open.
9
TECHNICAL SPECIFICATIONS 295

FLUIDS AND LUBRICANTS
Engine
ComponentFluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use Mopar Antifreeze/Coolant 10
Year/150,000 Mile Formula OAT (Organic Additive Tech-
nology) or equivalent meeting the requirements of FCA
Material Standard MS.90032.
Engine Oil – 2.4L Engine We recommend you use SAE 0W-20 API Certified Engine
Oil, meeting the requirements of FCA Material Standard
MS-6395 such as Mopar, Pennzoil, and Shell Helix. Refer to
your engine oil filler cap for correct SAE grade.
Engine Oil Filter We recommend you use a Mopar Engine Oil Filter.
Spark Plugs – 2.4L Engine We recommend you use Mopar Spark Plugs.
Fuel Selection – 2.4L Engine 87 Octane, 0-15% Ethanol.
CAUTION!
•Mixing of engine coolant (antifreeze) other than
specified Organic Additive Technology (OAT) en-
gine coolant (antifreeze), may result in engine dam-
age and may decrease corrosion protection. Organic
(Continued)
CAUTION! (Continued)
Additive Technology (OAT) engine coolant is differ-
ent and should not be mixed with Hybrid Organic
Additive Technology (HOAT) engine coolant (anti-
freeze) or any “globally compatible” coolant (anti-
freeze). If a non-OAT engine coolant (antifreeze) is
(Continued)
9
TECHNICAL SPECIFICATIONS 297

Folding Rear Seat...........................29
Four-Way Hazard Flasher .....................197
Freeing A Stuck Vehicle ..................... .231
Fuel ................................... .292
Additives ............................. .294
Clean Air ............................. .293
Ethanol .............................. .293
Filler Cap (Gas Cap) ..................... .178
Gasoline .............................. .292
Light ..................................87
Materials Added ........................ .294
Methanol ............................. .293
Octane Rating ....................... .292, 297
Specifications .......................... .297
Tank Capacity .......................... .296
Fuses .................................. .202
Gas Cap (Fuel Filler Cap) .....................178
Gasoline, Clean Air ........................ .293
Gasoline (Fuel) ........................... .292
Gasoline, Reformulated ..................... .293
Gear Ranges ............................. .163
Gear Select Lever Override ....................229
General Information ........................ .105
Glass Cleaning ........................... .288Gross Axle Weight Rating
.................180, 182
Gross Vehicle Weight Rating ...............180, 182
Guide, Body Builders .........................6
GVWR ................................. .180
Hazard Driving Through Flowing, Rising, Or Shallow
Standing Water ......................... .192
Hazard Warning Flasher ..................... .197
Headlights ................................41
Cleaning .............................. .285
Passing ................................42
Head Restraints ............................34
Heated Seats ...............................32
Heater, Engine Block ....................... .157
Hill

Start Assist .............................98
Hitches Trailer Towing .......................... .184
Holder, Cup ...............................65
Hood Prop ................................60
Hood Release ..............................60
Ignition ..................................19
Key ............................... .16, 19
Ignition Key Removal ........................19
336 INDEX

Tire Pressure Monitoring (TPMS)...........88, 101
Traction Control ........................ .100
Turn Signal ......................... .91, 151
Warning (Instrument Cluster Description) .....85, 91
Loading Vehicle ....................... .180, 181
Capacities ............................. .181
Tires................................. .267
Locks ....................................23
Door ..................................23
Low Tire Pressure System .....................101
Lubrication, Body ......................... .247
Lug Nuts ............................... .290
Maintenance Free Battery .....................243
Maintenance Schedule ...................... .237
Malfunction Indicator Light (Check Engine) ......89, 93
Manual, Service ........................... .330
Master Cylinder (Brakes) .....................255
Memory Feature (Memory Seat) .................29
Memory Seat ..............................29
Memory Seats And Radio .....................29
Methanol ............................... .293
Mirrors ..................................38
Electric Powered ..........................40
Electric Remote ...........................40 Exterior Folding
..........................39
Outside ................................38
Rearview ...............................38
Modifications/Alterations, Vehicle ................6
Monitor, Tire Pressure System ..................101
Mopar Parts ............................. .329
Multi-Function Control Lever ...................41
New Vehicle Break-In Period ..................157
Occupant Restraints ........................ .106
Octane Rating, Gasoline (Fuel) ..............292, 297
Oil, Engine ........................... .244, 297
Capacity .............................. .296
Change Interval ........................ .244
Checking ............................. .242
Dipstick .............................. .242
Disposal .............................. .245
Filter ............................. .246,

297
Filter Disposal .......................... .245
Identification Logo ...................... .244
Materials Added To ...................... .245
Pressure Warning Light .....................86
Recommendation .....................244, 296
Synthetic ............................. .245
338 INDEX