it makes it easier when it comes time to fill your system. R12 is a little harder to find and costs a lot more than R 134. IMO, if your fixing up your a/c set up, switch to R 134.


1971 Plymouth Duster 340 auto
1937 Plymouth PT50
1969 Dodge Dart Swinger 340 4 speed
2013 Ram laramie 2500 hemi
2008 Harley FLSTSB springer