Green fluid leaking after recharging A/C

most likely lubricant or dye if you added R134a with additives.....

R134a alone does not leave residue since it would just vaporize as it leaks out. You likely have a significant problem with the compressor and at an absolute minimum will require that to be replaced and the system cleaned and recharged. I would venture a guess that your heat works fine, but your AC is a train wreck. You are likely in need of professional evaluation and repair.

There are several threads on the forum regarding Gen 2 A/C systems with tons of good info. A lot of it provided by AC professional @lech auto air conditionin

 

By definition, if you are having to frequently recharge the system you must have a leak. It also must be a significant leak, so you must get that taken care of. It is irresponsible to continually allow R134a to be discharged into the atmosphere via the leak.

 

If you guys realized how much refrigerant is lost every day in "industrial" HVAC and refrigeration you would vomit on yourselves. His leak is a drop of water in Lake Superior........

a bit like America where we want to spend a gazillion dollars to clean up the world. It's like you and me sitting in the corner of a swimming pool telling everyone we're not going to pee because we want to make a difference, but there's 800 people on the other end of the pool pissing up a storm. It makes some of us feel good, but the reality is that it's just wasted effort.