Not sure if this is a restoration, maintentance, or mild modification question, so I posted here.
I have the original AC in the car. I had it charged in 1990 with R-12 and it worked fine. Sometime between 1992 and 2000, the car lost the charge. R-12 is around $100 a lb over here, so way too expensive. However, I'd like to use my factory air.
Instructions online make it seem really easy. Attach a filling adaptor, drop some new oil in, drop 3-4 12 oz. cans in. Done.
Is it really that easy? Should I be concerned about anything? Don't want to ruin any of my factory components.
Thanks.