2018 Ram 1500 User Guide

FLUID CAPACITIES — 1500 3.0L DIESEL
U.S.Metric
Fuel (Approximate)
3.0L Diesel Engine 26 Gallons98.5 Liters
Diesel Exhaust Fluid Tank 8 Gallons30.3 Liters
Engine Oil With Filter
3.0L Liter Diesel Engine
(SAE 5W-40 Synthetic, API CJ-4) 10.5 Quarts
10 Liters
Cooling System
3.0L Turbo Diesel Engine (Mopar Engine
Coolant/Antifreeze 10 Year/150,000 Mile For-
mula OAT (Organic Additive Technology)) 11.6 Quarts
11 Liters
FLUID CAPACITIES — 6.7L CUMMINS DIESEL ENGINE
U.S.Metric
Fuel (Approximate)
2500/3500 Standard Cab Longbed Models 28 Gallons106 Liters
2500/3500 Crew/Mega Cab Shortbed Models 31 Gallons129 Liters
2500/3500 Crew Cab Longbed Models 32 Gallons132 Liters
Standard Rear Tank – Chassis Cab Only 52 Gallons197 Liters
Optional Midship Tank – Chassis Cab Only 22 Gallons83 Liters
Diesel Exhaust Fluid Tank (Approximate) –
2500/3500 Models 5.5 Gallons
21 Liters
279

U.S.Metric
Diesel Exhaust Fluid Tank (Approximate) –
Chassis Cab 9 Gallons
34 Liters
Engine Oil With Filter
6.7L Turbo Diesel Engine 12 Quarts11.4 Liters
Cooling System
6.7L Turbo Diesel Engine (Mopar Engine
Coolant/Antifreeze 10 Year/150,000 Mile For-
mula) 5.7 Gallons
21.4 Liters
FLUIDS AND LUBRICANTS — GAS ENGINE
Engine
Component Fluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use Mopar Antifreeze/Coolant 10 Year/150,000 Mile
Formula OAT (Organic Additive Technology).
Engine Oil – 3.6L Engine We recommend you use API Certified SAE 5W-20 Engine Oil, meeting the
requirements of FCA Material Standard MS-6395 such as Mopar, Penn-
zoil, and Shell Helix. Refer to your engine oil filler cap for correct SAE
grade.
Mopar SAE 5W-30 engine oil approved to FCA Material Standard MS-
6395 may be used when SAE 5W-20 engine oil meeting MS-6395 is not
available.
Engine Oil – 5.7L Engine We recommend you use API Certified SAE 5W-20 Engine Oil, meeting the
requirements of FCA Material Standard MS-6395 such as Mopar, Penn-
zoil, and Shell Helix. Refer to your engine oil filler cap for correct SAE
grade.
TECHNICAL SPECIFICATIONS
280

ComponentFluid, Lubricant, or Genuine Part
Engine Oil – 6.4L For best performance and maximum protection under all types of operat-
ing conditions, the manufacturer only recommends full synthetic engine
oils that meet the American Petroleum Institute (API) categories of SN.
The manufacturer recommends the use of Pennzoil Ultra 0W-40 or
equivalent Mopar engine oil meeting the requirements of FCA Material
Standard MS-12633 for use in all operating temperatures.
Engine Oil Filter We recommend you use Mopar brand Engine Oil Filters.
Spark Plugs We recommend you use Mopar Spark Plugs.
Fuel Selection – 3.6L Engine 87 Octane, 0-15% Ethanol.
Fuel Selection – 3.6L Flex Fuel (E-85) Engine – If Equipped 87 Octane, Up To 85% Ethanol.
Fuel Selection – 5.7L/6.4L Engines 89 Octane Recommended - 87 Octane Acceptable, 0-15% Ethanol.
CAUTION!
• Mixing of engine coolant (antifreeze)
other than specified Organic Additive
Technology (OAT) engine coolant (anti-
freeze), may result in engine damage
and may decrease corrosion protection.
Organic Additive Technology (OAT) en-
gine coolant is different and should not
be mixed with Hybrid Organic Additive
Technology (HOAT) engine coolant (anti-
freeze) or any “globally compatible”
coolant (antifreeze). If a non-OAT engine
CAUTION!
coolant (antifreeze) is introduced into
the cooling system in an emergency, the
cooling system will need to be drained,
flushed, and refilled with fresh OAT cool-
ant (conforming to MS.90032), by an
authorized dealer as soon as possible.
• Do not use water alone or alcohol-based
engine coolant (antifreeze) products. Do
not use additional rust inhibitors or an-
tirust products, as they may not be com-
CAUTION!
patible with the radiator engine coolant
and may plug the radiator.
• This vehicle has not been designed for
use with propylene glycol-based engine
coolant (antifreeze). Use of propylene
glycol-based engine coolant (antifreeze)
is not recommended.
281

Chassis
ComponentFluid, Lubricant, or Genuine Part
Automatic Transmission – Eight-Speed Automatic Use only Mopar ZF 8&9 Speed ATF Automatic Transmission Fluid, or
equivalent. Failure to use the correct fluid may affect the function or
performance of your transmission.
Automatic Transmission – Six-Speed Automatic with Gasoline Engine Use only ATF+4 Automatic Transmission Fluid. Failure to use ATF+4 fluid may affect the function or performance of your transmission. We recom-
mend Mopar ATF+4 fluid.
Transfer Case We recommend you use Mopar BW44–44 Transfer Case Fluid.
Front Axle – 1500 Four-Wheel Drive Models We recommend you use Mopar GL-5 Synthetic Axle Lubricant SAE
75W-85.
Rear Axle – 1500 Models We recommend you use Mopar Synthetic Gear Lubricant SAE 75W-140
(MS-8985). Limited-Slip Rear Axles require the addition of 5 oz. (148 ml)
Mopar Limited Slip Additive (MS-10111).
Front and Rear Axle – 2500/3500 Models We recommend you use SAE 75W-85 HD Ram GL-5 Synthetic Axle
Lubricant. Limited slip additive is not required for Limited-Slip Rear
Axles.
Brake Master Cylinder We recommend you use Mopar DOT 3. If DOT 3 brake fluid is not
available, then DOT 4 is acceptable.
Power Steering Reservoir – 2500/3500 Models We recommend you use Mopar Power Steering Fluid +4 or Mopar
ATF+4 Automatic Transmission Fluid.
TECHNICAL SPECIFICATIONS
282

FLUIDS AND LUBRICANTS — 3.0L DIESEL ENGINE
Engine
ComponentFluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT (Organic Additive Technology).
Engine Oil We recommend you use 5W-40
syntheticengine oil such as Mopar or Shell Rotella that meets FCA Material Standard
MS-10902 and the API CJ-4 engine oil category is required.
Engine Oil Filter We recommend you use Mopar Engine Oil Filters.
Fuel Filters We recommend you use Mopar Fuel Filter. Must meet 3 micron rating.
Using a fuel filter that does not meet the
manufacturers filtration and water separating requirements can severely impact fuel system life and reliability.
Fuel Selection Use good quality diesel fuel from a reputable supplier in your vehicle. Federal law requires that you must fuel this vehicle
with Ultra Low Sulfur Highway Diesel fuel (15 ppm Sulfur maximum) and prohibits the use of Low Sulfur Highway Diesel
fuel (500 ppm Sulfur maximum) to avoid damage to the emissions control system.
For most year-round service, No. 2 diesel fuel meeting ASTM specification D-975 Grade S15 will provide good
performance. We recommend you use a blend of up to 5% biodiesel, meeting ASTM specification D-975 with your diesel
engine.This vehicle is compatible with biodiesel blends greater than 5% but no greater than 20% biodiesel meeting ASTM
specification D-7467 provided the shortened maintenance intervals are followed as directed.
Diesel Exhaust Fluid Mopar Diesel Exhaust Fluid (API Certified) (DEF) or equivalent that has been API Certified to the ISO 22241 standard.
Use of fluids not API Certified to ISO 22241 may result in system damage.
NOTE:
If climatized or diesel Number 1 ULSD fuel is
not available, and you are operating below
(20°F/-6°C), in sustained arctic conditions,
Mopar Premium Diesel Fuel Treatment (or
equivalent) is recommended to avoid gelling.CAUTION!
• Mixing of engine coolant (antifreeze)
other than specified Organic Additive
Technology (OAT) engine coolant (anti-
freeze), may result in engine damage
CAUTION!
and may decrease corrosion protection.
Organic Additive Technology (OAT) en-
gine coolant is different and should not
be mixed with Hybrid Organic Additive
Technology (HOAT) engine coolant (anti-
283

CAUTION!
freeze) or any “globally compatible”
coolant (antifreeze). If a non-OAT engine
coolant (antifreeze) is introduced into
the cooling system in an emergency, the
cooling system will need to be drained,
flushed, and refilled with fresh OAT cool-
ant (conforming to MS.90032), by an
authorized dealer as soon as possible.
CAUTION!
• Do not use water alone or alcohol-basedengine coolant (antifreeze) products. Do
not use additional rust inhibitors or an-
tirust products, as they may not be com-
patible with the radiator engine coolant
and may plug the radiator.
• This vehicle has not been designed for
use with propylene glycol-based engine
CAUTION!
coolant (antifreeze). Use of propylene
glycol-based engine coolant (antifreeze)
is not recommended.
Chassis
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission (3.0L Diesel, 8-Speed Transmission) Only use Mopar ZF 8&9 Speed ATF Automatic Transmission Fluid or
equivalent. Failure to use the correct fluid may affect the function or
performance of your transmission.
Transfer Case We recommend you use Mopar BW44–44 Transfer Case Fluid.
Front Axle – 1500 Four-Wheel Drive Models We recommend you use Mopar GL-5 Synthetic Axle Lubricant SAE
75W-85.
Rear Axle We recommend you use Mopar Synthetic Gear Lubricant SAE 75W-140
(MS-8985). Limited-Slip Rear Axles require the addition of 5 oz. (148 ml)
Mopar Limited Slip Additive (MS-10111).
Brake Master Cylinder We recommend you use Mopar DOT 3 Brake Fluid, SAE J1703 should be
used. If DOT 3, SAE J1703 brake fluid is not available, then DOT 4 is
acceptable.
TECHNICAL SPECIFICATIONS
284

FLUIDS AND LUBRICANTS — 6.7L DIESEL ENGINES
Engine
ComponentFluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT (Organic Additive Technology).
Engine Oil In ambient temperatures above 0°F (-18°C), we recommend you use 15W-40 engine oil such as Mopar, Shell Rotella
and Shell Rimula that meets FCA Material Standard MS-10902 and the API CJ-4 engine oil category is required.
Products meeting Cummins CES 20081 may also be used. The identification of these engine oils is typically located on
the back of the oil container.
In ambient temperatures below 0°F (-18°C), we recommend you use 5W-40
syntheticengine oil such as Mopar, Shell
Rotella and Shell Rimula that meets FCA Material Standard MS-10902 and the API CJ-4 engine oil category is required.
Engine Oil Filter We recommend you use Mopar Engine Oil Filters.
Fuel Filters We recommend you use Mopar Fuel Filter. Must meet 3 micron rating.
Using a fuel filter that does not meet the
manufacturers filtration and water separating requirements can severely impact fuel system life and reliability.
Crankcase Ventilation Filter We recommend you use Mopar CCV Filter.
Fuel Selection Use good quality diesel fuel from a reputable supplier in your vehicle. Federal law requires that you must fuel this
vehicle with Ultra Low Sulfur Highway Diesel fuel (15 ppm Sulfur maximum) and prohibits the use of Low Sulfur
Highway Diesel fuel (500 ppm Sulfur maximum) to avoid damage to the emissions control system.
For most year-round service, No. 2 diesel fuel meeting ASTM specification D-975 Grade S15 will provide good
performance.
If climatized or diesel Number 1 ULSD fuel is not available, and you are operating below (20°F/-6°C), in sustained arctic
conditions, Mopar Premium Diesel Fuel Treatment (or equivalent) is recommended to avoid gelling.
This vehicle is fully compatible with biodiesel blends up to 5% biodiesel meeting ASTM specification D-975.
Pickup models,
and Chassis Cab models configured with optional B20 capability, are additionally compatible with 20% biodiesel
meeting ASTM specification D-7467.
285

ComponentFluid, Lubricant, or Genuine Part
Diesel Exhaust Fluid Mopar Diesel Exhaust Fluid (API Certified) (DEF) or equivalent that has been API Certified to the ISO 22241 standard.
Use of fluids not API Certified to ISO 22241 may result in system damage. You can receive assistance in locating DEF
in the United States by calling 866-RAM-INFO (866-726-4636). In Canada call 1–800–465–2001 (English) or
1–800–387–9983 (French).
Chassis
Component
Fluid, Lubricant, or Genuine Part
Automatic Transmission – If Equipped 6.7L Diesel with (Six-Speed
68RFE) – 2500/3500 Pickup models without PTO Only use ATF+4 Automatic Transmission Fluid. Failure to use ATF+4 fluid
may affect the function or performance of your transmission. We recom-
mend Mopar ATF+4 fluid.
Automatic Transmission – If Equipped 6.7L Diesel with (Six-Speed
AS69RC) – Pickup models with PTO and All Chassis Cab models Only use Mopar ASRC Automatic Transmission Fluid or equivalent. Failure
to use the proper fluid may affect the function or performance of your
transmission.
Transfer Case We recommend you use Mopar BW44–44 Transfer Case Fluid.
Front and Rear Axle Fluid (2500/3500) We recommend you use SAE 75W-85 HD Ram GL-5 Synthetic Axle
Lubricant. Limited slip additive is not required for Limited-Slip Rear
Axles.
Front and Rear Axle Fluid (4500/5500) We recommend you use GL-5 SAE 75W-90 Synthetic (MS-9763). Limited
slip additive is not required for Limited-Slip Rear Axles.
Clutch Linkage We recommend you use Mopar Multi-Purpose Grease, NLGI Grade 2 E.P.
or equivalent.
Manual Transmission (G-56) – If Equipped We recommend you use Mopar ATF+4 Automatic Transmission Fluid or
equivalent licensed ATF+4 product.
TECHNICAL SPECIFICATIONS
286