Subject: how difficult to recharge AC on my 1995 CK
I see kits in WALMART and other places.
Is it rocket science to recharge the AC?
Is there a fitting/valve I sceww the recharge kit on to ?
Is it difficult to find ?
I have located a cyliner at the rear of the engine compartment which says "use only RU" something or other and says "under presssure."
Any hints/help appreciated.