Need air conditioner recharged, what type do I use?

Yes, it uses R134-A. You can buy a recharge kit from most auto parts stores. you can also buy a dye kit to check for leaks. some R-134a have a leak sealer in the refrigerant. Make sure to get one that has a pressure guage on it or buy one sepperate, remember to have the engine running with the a/c on max cold.

Check the labels, but usually it's R134-a refrigerant. I suggest you might as well check for leaks. One common problem of ageing compressors is that the shaft seal leaks in due time and might need to be replaced. Check with your reliable aircon tech guy. goodluck!