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Refrigerant Type and Capacities specifications.

Vehicle A/C specification guide

2015 Ram 1500 5.7L Refrigerant Type and A/C Capacity

The 2015 Ram 1500 5.7L may be equipped with an R-134a or R-1234yf air-conditioning system. The correct refrigerant and charge quantity depend on the system installed in the individual truck.

Quick answer

The available specifications indicate approximately 539 grams (1.19 pounds) of R-134a or 510 grams (1.13 pounds) of R-1234yf.

Always use the underhood refrigerant label as the final reference for the specific vehicle.

Important: Do not mix R-134a and R-1234yf. These systems require different refrigerant, fittings, recovery equipment, service procedures, and compatible lubricants.
 
 

🚗 Refrigerant Type & Capacity for 2015 Dodge Ram 1500 5.7L ❄️

Looking for the correct refrigerant type and amount for your 2015 Dodge or Ram Truck 1500 5.7L? Download the official manufacturer chart below and ensure your A/C system runs efficiently in Hialeah, Doral, Miami Lakes, and all of Miami-Dade County.

2015 Ram 1500 A/C refrigerant capacity chart

The following chart provides a convenient reference for several 2015 Ram 1500 engine configurations. Confirm the final specification using the label installed on the vehicle.
Engine R-134a capacity R-1234yf capacity
3.0L, 5.7L or 6.4L 539 g / 19.0 oz / 1.19 lb 510 g / 18.0 oz / 1.13 lb
3.6L 567 g / 20.0 oz / 1.25 lb 510 g / 18.0 oz / 1.13 lb
6.7L 624 g / 22.0 oz / 1.38 lb Confirm using the vehicle label

Specifications can vary by equipment, production configuration, and refrigerant system. The underhood label and current professional repair information take priority over a general online chart.

📖 Why Is the Right Refrigerant Important?

Using the correct refrigerant type and quantity is crucial for your A/C system to function properly. Overcharging or undercharging can cause:
  • Reduced cooling efficiency
  • Increased wear on the A/C compressor
  • Potential system damage

How to identify the correct refrigerant

Do not select refrigerant based only on the model year or engine. Inspect the vehicle before connecting service equipment.
  1. Locate the underhood A/C label. It normally identifies the refrigerant type and factory charge quantity.
  2. Read the complete label. Look for “R-134a” or “R-1234yf” and a quantity expressed in grams, kilograms, ounces, or pounds.
  3. Inspect the service fittings. R-134a and R-1234yf systems use different service connections.
  4. Check for evidence of previous repairs. Incorrect fittings, retrofit components, or refrigerant contamination require further inspection.
  5. Use professional refrigerant identification when necessary. A label alone cannot confirm the contents of a system that may have been serviced incorrectly.
If the label is missing, damaged, or contradicts the installed components, do not guess. Verify the specification through professional vehicle-repair information before servicing the system.

🔧 Need Help Recharging Your A/C System?

If you’re experiencing weak cooling or A/C issues, our ASE-certified mobile A/C technicians provide expert A/C recharge and repair services in Hialeah, Doral, Miami Lakes, and all of Miami-Dade County.

Why the Ram A/C system must be charged by weight

Refrigerant pressure changes with ambient temperature, engine speed, cabin temperature, condenser airflow, compressor operation, and system load. Pressure readings alone cannot determine the exact amount of refrigerant inside the system. The correct procedure is to recover the refrigerant with approved equipment, repair any confirmed leaks, evacuate the system, and install the specified refrigerant quantity using an accurate scale or charging machine.

Undercharging may cause:

  • Weak or inconsistent cooling
  • Low evaporator refrigerant feed
  • Insufficient compressor oil circulation
  • Compressor overheating or accelerated wear

Overcharging may cause:

  • Elevated high-side pressure
  • Reduced cooling efficiency
  • Increased compressor load
  • Possible compressor or system damage
Field rule: A correct pressure reading does not prove that the refrigerant charge is correct. Refrigerant quantity must be confirmed by weight.

Is your 2015 Ram 1500 A/C not cooling?

Auto A/C Repair LLC provides mobile automotive air-conditioning diagnosis and repair in qualifying areas of Miami-Dade County, including Hialeah, Doral, Miami Lakes, and nearby communities north of Zoo Miami. We do not guess or simply add refrigerant. We test the system, identify the cause of the cooling problem, check for leaks, and confirm the correct refrigerant charge by weight. Call (786) 483-9406 Text About Your Ram A/C

Mobile service requires a private driveway or private parking space. Same-day availability is not guaranteed.

2015 Ram 1500 refrigerant FAQs

What refrigerant does a 2015 Ram 1500 5.7L use?

Depending on its factory configuration, the truck may use R-134a or R-1234yf. Check the underhood A/C label before connecting equipment or adding refrigerant.

How much refrigerant does a 2015 Ram 1500 5.7L hold?

The available specifications indicate approximately 539 grams or 19 ounces of R-134a, or 510 grams or 18 ounces of R-1234yf. The vehicle’s underhood label is the final reference.

Can R-134a and R-1234yf be mixed?

No. The refrigerants must not be mixed. They use different service equipment and may require different lubricants and procedures. Mixing refrigerants can contaminate the system and service equipment.

Can I determine the correct refrigerant charge using pressure?

No. Pressure changes with operating and environmental conditions. The specified refrigerant quantity must be installed by weight after the system has been properly recovered and evacuated.

Why is my Ram A/C low on refrigerant?

Automotive A/C systems are sealed. A low charge generally indicates a leak or previous improper service. The system should be inspected before refrigerant is added.

Does Auto A/C Repair LLC service Ram trucks at the customer’s location?

Yes. Auto A/C Repair LLC provides mobile A/C diagnosis and repair in qualifying Miami-Dade County locations. A private driveway or private parking space is required.

More Car A/C Refrigerant Topics

Refrigerant Hub

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Low Refrigerant Symptoms

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Pressure Readings Guide

Understand normal refrigerant pressure behavior during testing.

Leak Repair Service

See refrigerant leak diagnosis and repair options in Miami-Dade County.

Capacity & Specifications

Check refrigerant capacity references and charging guidance.

R-1234yf Service

Read about recharge service for newer R-1234yf vehicle systems.

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