R134A refrigerant Frequently Asked Questions

is it ok to put R134A refrigerant in my vehicle?
You should check the vehicle owner’s manual for the refrigerant type and charge size 
 contact the dealer or vehicle manufacturer for information as to the refrigerant and lubricant specified for the particular make/model

How long does it take for a 12-ounce can of R-134a refrigerant to empty into the system?
The time required depends on the pressure difference between the system and the can.  When adding refrigerant to a system that is low on charge, cooling of the refrigerant in the can will slow the charging process.  Allowing the can to warm to ambient air temperature may improve the charging rate.  It will typically take several minutes for a can to transfer into the system. Never use external heat sources to heat refrigerant cans.  They may explode and cause serious injury

Can I add R-134a to a system charged with R-12?

No.  Combining these two refrigerants will form a mixture that is higher in pressure than either R-12 or R-134a, and can result in damage to the air conditioning system components, including the compressor, or release of the refrigerant by the system’s pressure relief valve

How much R-134a do I use to fill an evacuated system?

Again, the amount of R-134a refrigerant in the system can be found in the service manual or on a service plate located in the engine compartment of the vehicle.



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