How much freon in a 1999 Ford Mustang 3.8?

A 1999 Ford Mustang with a 3.8L engine typically requires about 2.5 pounds (or approximately 1.2 kilograms) of R-134a refrigerant for its air conditioning system. It's important to check the specific vehicle's manual or a label under the hood for precise specifications, as variations may exist based on production changes or modifications. Always ensure the system is serviced by a qualified technician to avoid issues.