I know it sounds kind of stupid but thats what I want to do. The previous owner of my car had it changed over to 134 and I would like to go back to the old style fittings and such, so I can use Freeze12 or R414, which I've heard works more efficiently than 134. Now my hoses say r134 and I have the 134 fittings so would I be able to just get away with changing the fittings for high and low side and flushing out the system?

 

R12 is illegal, i believe, and very very very expensive

 

re-read my post carefully... I dont want r12, im putting in a substitute for it.... btw R12 isn't illegal to own, just illegal to manufacture in the U.S.

 

you can use the r414 with the old fittings or the r134a fittings,just make sure you have the correct hose fittingsfor r12 fitttings, the r414 will work great with either gases (r12 or 134a)

 

Also you can use R-401 or R-409

 

its R414A and it cost about $400 for 30lbs ( i work in a HVAC place)

 

last time i had to look it up it was about $1,900 for 30lbs

 

actually its R414B not A, i got a bottle of it in my garage and my brother has been working for an HVAC company for the pasty 4-5 yrs. and if you still think its R414a ill go take a snap shot of the small bottle i got in my garage, my brother also has a big contaner of it like the big bottle size.

 

My cylinders of R-414B are only 25 lb.

 

is it illegal to sell cause i have like 15 lbs...

 

It's legal to recycle, purify, use and sell. It's only illegal to manufacture new.

 

you just need a license to purchase r12 which not too many people have one anymore. at strauss our going rate was $3 an oz.

 

read what nikh23 said. his info is 100% true