The 2018 Chrysler 300 uses refrigerant R-134a (also known as HFC-134a, and commonly referred to as Freon) in its air conditioning system.
Refrigerant type and compatibility
The 2018 Chrysler 300's factory A/C system is designed for R-134a refrigerant. This has been the standard for most vehicles built before the broader adoption of R-1234yf in later years. For this model year, R-1234yf is not used unless the system has been professionally retrofitted with the appropriate components and oil. Using the wrong refrigerant can impair cooling performance and may damage seals and compressors.
Before proceeding with any service, review these key points about refrigerant compatibility and care.
- Refrigerant type: R-134a (HFC-134a). This is the stock refrigerant for the 2018 Chrysler 300.
- Compatibility: Do not mix R-1234yf with an R-134a system. If a retrofit is considered, it should be performed by a qualified technician with the correct equipment and parts.
- Lubricant: The system uses PAG oil formulated for R-134a. If the system is opened for service, the correct PAG type and amount should be used per the service manual.
- Charging method: The system should be charged by weight according to the factory specification. Use proper gauges, scales, and a compatible refrigerant can, and avoid guessing the charge amount.
In short, R-134a remains the appropriate refrigerant for this vehicle, and proper procedure—by weight, with the correct oil—should be followed to maintain cooling performance.
Service considerations and maintenance tips
When servicing the A/C, consider these practical guidelines to help ensure reliable cooling and system longevity.
Practical steps for service
These points outline typical considerations a technician or informed car owner would follow.
- Verify the refrigerant type by checking the service ports and vehicle documentation.
- Use R-134a refrigerant only unless a professional confirms a compliant retrofit to another refrigerant.
- Replace or replenish PAG oil as specified when opening the system and after component replacement.
- Charge the system by weight according to the dealer or service manual, using accurate measuring equipment.
Following these practices helps prevent under- or overcharging and supports optimal cooling performance.
Summary
For the 2018 Chrysler 300, the correct refrigerant is R-134a. Do not use R-1234yf unless a professional has performed a compliant retrofit with the necessary parts. When servicing the A/C, charge by weight, use the appropriate PAG oil, and follow the vehicle’s service specifications. If cooling issues persist or leaks are suspected, consult a certified automotive A/C technician.
What Freon does a 2018 Chrysler 300 take?
Chrysler 300 Refrigerant. R1234yf. 1 ounce - 68224028AB | Chrysler Jeep Dodge City, McKinney TX.
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Can I refill my car AC refrigerant myself?
It used to be that only professionals could recharge an AC system, but there are now kits available to do it on your own. What you'll need is: AC recharge kit with refrigerant (R-134a or R-1234yf, depending on your vehicle) Safety gloves and goggles.
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What refrigerant does a Chrysler 300 use?
Essential Chrysler 300 Refrigerants
R-134a PAG 46 AC Oil Lubricant: with ICE 32 Lubricant Enhancer features advanced chemistry to help extend compressor life and improve cooling capacity.
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Does my car use R-134a or R-1234yf?
Cars built mid-1990s to roughly 2014–2017 almost always use R134a. Most 2017–present vehicles, especially Euro, hybrid and EV models, use R-1234yf. Some EVs use specialised refrigerant blends depending on the cooling system. Your car has a sticker under the bonnet that confirms its exact gas type.
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