CAN you mix r134a with r12 refriderant?

No, you should not mix R134a with R12 refrigerant. They are different chemical compounds with distinct properties, and mixing them can lead to system inefficiencies, damage, or even system failure. Additionally, the oil used in R12 systems is incompatible with R134a, which can cause further issues. It is essential to properly evacuate the system and use the correct refrigerant for optimal performance and safety.