How much freon to put in a 1990 Mazda b2600?

To determine the correct amount of refrigerant (Freon) for a 1990 Mazda B2600, consult the vehicle's service manual or the label located under the hood, which typically specifies the exact capacity. Generally, older vehicles like this one may require around 2.5 to 3.0 pounds of R-12 or R-134a refrigerant, depending on the original system design. It's essential to use the correct type of refrigerant and have the system properly evacuated and charged by a professional to avoid damage.