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My car's cooling system uses R-12 as the refrigerant. I had an old can of Freon that I'd fill up with, but I just ran out. I've had a hard time finding a replacement. I'm interested in buying enough Refrigerant R-12 to last me a while (Freon or other brand). Contact me if you have any or if you know where I might find some. Thanks, much appreciated ahead of time.

Hello folks, i need a little bit of help with my 52 olds 98 engine block. I need to clean the rust out of the cooling jackets of the block and heads. Everything is tore down. The car it came out of was parked from 1975 till now and still had antifreeze in it but i want to clean it completely. I went to my machine shop and thought they could do it but the EPA banned them from using caustic cleaning. Cant find a local (Dallas) shop with a ultrasonic cleaner to do the block and heads. I have a 55 gallon plastic drum i can submerge the entire block into for cleaning, i have already degreased it with industrial alkalai, looks brand new on the outside. Now i need to clean the cooling jackets. I have already taken a piece of 1/4" steel cable in a drill and knocked out a lot of it through the freeze plug openings and holes in the deck. I have read a lot of outside forums saying i can possibly use vinegar. Has anyone tried this with an entire block?? I have been warned by several people to not use muratic or sulphuric acid as it will etch and destroy machined surfaces. I am open to any suggestions for doing this. Dont want to have to buy $100 to $200 worth of chemicals to clean the block.