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boostedc10 · 05-13-2014, 03:02 PM

The problem with converting a R-12 system to R-134 system is a few things;
The compressor will work harder
The condenser is too small for the system to work efficiently
PAG oil turns to a gel when mixed to mineral oil

I know people have swapped the fittings and called it a day but "most" of the time this never lasts. Additionally the stock lines in the truck are not barrier hoses and with R-134 having a smaller molecular structure it usually finds a way out through them.

If it was me I would either stick with R-12 or swap the entire system over to R-134, but that is just me.

05-13-2014, 03:02 PM	#20
boostedc10 Registered User Join Date: Oct 2012 Location: Detroit Posts: 748	Re: Stock AC vs aftermarket AC The problem with converting a R-12 system to R-134 system is a few things; The compressor will work harder The condenser is too small for the system to work efficiently PAG oil turns to a gel when mixed to mineral oil I know people have swapped the fittings and called it a day but "most" of the time this never lasts. Additionally the stock lines in the truck are not barrier hoses and with R-134 having a smaller molecular structure it usually finds a way out through them. If it was me I would either stick with R-12 or swap the entire system over to R-134, but that is just me.