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2020 RAM 2500 Owners Manual - REFUELING THE VEHICLE — DIESEL ENGINE



Owner’s Manuals 2020 REFUELING THE VEHICLE — DIESEL ENGINE

REFUELING THE VEHICLE — DIESEL ENGINE

Open the fuel filler door.

 

Fill Locations

1 — Diesel Exhaust Fluid (DEF) Fill Location 2 — Diesel Fuel Fill Location

 

There is no fuel filler cap. A flapper door inside the filler pipe seals the system.

Insert the fuel nozzle fully into the filler pipe – the nozzle opens and holds the flapper door while refueling.
Fill the vehicle with fuel – when the fuel nozzle “clicks” or shuts off the fuel tank is full.
Remove the fuel nozzle and close the fuel door.

In the event that you run the vehicle out of fuel, once refueled, place the ignition in the ON posi- tion for 30 seconds, then turn the ignition OFF and wait 30 seconds. Repeat this procedure three times, prior to cranking the engine.

Most fuel cans will not open the flapper door.

A funnel is provided to open the flapper door to allow emergency refueling with a fuel can.

Retrieve fuel funnel from the jack kit located under the front passenger seat.
Insert funnel into same filler pipe opening as the fuel nozzle.

 

Fill Locations And Funnel Usage

1 — Diesel Exhaust Fluid (DEF) Fill Location 2 — Emergency Diesel Fuel Fill Funnel

3 — Diesel Fuel Fill Location

 

Ensure funnel is inserted fully to hold flapper door open.

Pour fuel into funnel opening.
Remove funnel from filler pipe, clean off prior to putting back in the jack kit.

WARNING!
Never have any smoking materials lit in or near the vehicle when the fuel door is open or the tank is being filled.

 

WARNING!
Never add fuel when the engine is running. This is in violation of most state and federal fire regulations and may cause the “Malfunction Indicator Light” to turn on.
A fire may result if fuel is pumped into a portable container that is inside of a vehicle. You could be burned. Always place fuel containers on the ground while filling.

CAUTION!

To avoid fuel spillage and overfilling, do not “top off” the fuel tank after filling.

Diesel Exhaust Fluid

Your vehicle is equipped with a Selective Cata- lytic Reduction (SCR) system to meet the very stringent diesel emissions standards required by the Environmental Protection Agency.

The purpose of the SCR system is to reduce levels of NOx (oxides of nitrogen emitted from engines) that are harmful to our health and the environment to a near-zero level. A small quan- tity of Diesel Exhaust Fluid (DEF) is injected into the exhaust upstream of a catalyst where, when vaporized, it converts smog-forming nitrogen oxides (NOx) into harmless nitrogen (N2) and water vapor (H2O), two natural components of the air we breathe. You can operate with the comfort that your vehicle is contributing to a cleaner, healthier world environment for this and generations to come.

This vehicle is equipped with a Diesel Exhaust Fluid (DEF) injection system and a Selective Catalytic Reduction (SCR) catalyst to meet the emission requirements.

The DEF injection system consists of the following components:

DEF tank
DEF pump
DEF injector
Electronically-heated DEF lines
DEF control module
NOx sensors
Temperature sensors
SCR catalyst
UQS Sensor

 

Refer to “Instrument Cluster Display” in “Getting To Know Your Instrument Panel” for system messages and warnings.

Your vehicle is equipped with a DEF injection system. You may occasionally hear an audible clicking noise. This is normal opera- tion.
The DEF pump will run for a period of time after engine shutdown to purge the DEF system. This is normal operation.

Diesel Exhaust Fluid (DEF) is considered a very stable product with a long shelf life. If DEF is kept in temperatures between 10°F and 90°F (-12°C and 32°C), it will last a minimum of one year.

DEF is subject to freezing at the lowest tempera- tures. For example, DEF may freeze at tempera- tures at or below 12°F (-11°C). The system has been designed to operate in this environment.

 

When working with DEF, it is important to know that:

Any containers or parts that come into contact with DEF must be DEF compatible (plastic or stainless steel). Copper, brass, aluminum, iron or non-stainless steel should be avoided as they are subject to corrosion by DEF.
If DEF is spilled, it should be wiped up completely. The DEF gauge (located on the instrument cluster) will display the level of DEF remaining in the tank. Refer to “Instrument Cluster” and “Instrument Cluster Descriptions” in “Getting To Know Your Instrument Panel” for further infor- mation.
Driving conditions (altitude, vehicle speed, load, etc.) will affect the amount of DEF that is used in your vehicle.
Another factor is that outside temperature can affect DEF consumption. In cold condi- tions, 12°F (-11°C) and below, the DEF

gauge needle can stay on a fixed position and may not move for extended periods of time. This is a normal function of the system.

There is an electric heater inside the DEF tank that automatically works when neces- sary. And if the DEF supply does freeze, the truck will operate normally until it thaws.

Refer to “Fluids And Lubricants” in “Technical Specifications” for the correct fluid type.

Remove cap from DEF tank (located on drivers side of the vehicle or in fuel door).

Fill Locations

1 — Diesel Exhaust Fluid (DEF) Fill Location 2 — Diesel Fuel Fill Location

Insert DEF fill adapter/nozzle into DEF tank filler neck.
The DEF gauge may take up to five seconds to update after adding a gallon or more of Diesel Exhaust Fluid (DEF) to the DEF tank. If you have a fault related to the DEF system, the gauge may not update to the new level. See your authorized dealer for service. The DEF gauge may also not immediately update after a refill if the temperature of the DEF fluid is below 12°F (-11°C). The DEF line heater will possibly warm up the DEF fluid and allow the gauge to update after a period of run time. Under very cold conditions, it is possible that the gauge may not reflect the new fill level for several drives.
Excessive overfilling of the DEF tank can result in a MIL lamp/fault code and inaccu- rate level readings.

CAUTION!
Never add anything other than DEF to the tank – especially any form of hydrocarbon such as diesel fuel, fuel system additives, gasoline, or any other petroleum-based product. Even a very small amount of these, less than 100 parts per million or less than 1 oz. per 78 Gallons (295 Liters) will contaminate the entire DEF system and will require replacement. If owners use a container, funnel or nozzle when refilling the tank, it should either be new or one that is has only been used for adding DEF. Mopar provides an attachable nozzle with its DEF for this purpose.
Stop filling the DEF tank immediately when any of the following happen: DEF stops flowing from the fill bottle into the DEF tank, DEF splashes out the filler neck, or a DEF pump nozzle automatically shuts off. Reinstall cap onto DEF tank. Since DEF will begin to freeze at 12°F (-11°C), your vehicle is equipped with an automatic DEF heating system. This allows the DEF injection system to operate properly at temperatures below 12°F (-11°C). If your vehicle is not in operation for an extended period of time with temperatures below 12°F (-11°C), the DEF in the tank may freeze. If the tank is overfilled and freezes, it could be damaged. Therefore, do not overfill the DEF tank.

Extra care should be taken when filling with portable containers to avoid overfilling. Note the level of the DEF gauge in your instrument cluster. You may safely add a maximum of 2 Gallons (7.5 Liters) of DEF from portable containers when your DEF gauge is reading ½ full.

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