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87Skier · 11-18-2015, 04:06 PM

I would go with R134. It's a lot cheaper and anybody can service it. Just looking at the prices on Amazon R134 is about $5.50/pound while R12 is about $20/pound. It is slightly less efficient though.

The only changes that your truck might need is to flush the rest of the system (evap and lines), and to make sure that your compressor wasn't filled with mineral oil (R12 only) instead of pag oil (R134a only).

11-18-2015, 04:06 PM	#2
87Skier Registered User Join Date: Mar 2014 Location: Corvallis, OR Posts: 715	Re: Help me decide on the AC system I would go with R134. It's a lot cheaper and anybody can service it. Just looking at the prices on Amazon R134 is about $5.50/pound while R12 is about $20/pound. It is slightly less efficient though. The only changes that your truck might need is to flush the rest of the system (evap and lines), and to make sure that your compressor wasn't filled with mineral oil (R12 only) instead of pag oil (R134a only). __________________ 1972 GMC Jimmy Custom 4.8L (L20)/6L90E/NP205 1989 Chevy Suburban V2500 350/Turbo 400/4.11 gears 1996 Chevy Suburban K1500 350/4L60E