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mcbrew · 06-03-2010, 05:08 PM

Interesting... I never thought about it, but my old Mercedes had foam pipe insulation around the liquid AC lines. After 20 years and 400,000+ miles, the foam had deteriorated and fallen off. I replaced it just to make it look better. Not sure if it helped... But then again, that car was designed for r12, and that stuff had gotten really expensive, so I had it charged up with r290, which is just propane. Propane gets a little cold than r12, so my AC kicked butt regardless.

06-03-2010, 05:08 PM	#2
mcbrew Senior Member Full Access Member Join Date: Aug 2009 Location: Annapolis, MD Name: Jesse Age: 48 Posts: 130	Interesting... I never thought about it, but my old Mercedes had foam pipe insulation around the liquid AC lines. After 20 years and 400,000+ miles, the foam had deteriorated and fallen off. I replaced it just to make it look better. Not sure if it helped... But then again, that car was designed for r12, and that stuff had gotten really expensive, so I had it charged up with r290, which is just propane. Propane gets a little cold than r12, so my AC kicked butt regardless.
	__________________ -McBrew Current car: 2011 Subaru Outback 2.5i Premium w/ Lineartronic CVT transmission. Steel Silver. SOLD: 2009 Scion xD - BRM, 16" alloys, VSC, K&N drop-in air filter, Thule Aero roof bars, TRD sway bar, TRD short shift, TYC LED tails, Curt class-1 tow hitch, Italian leather shift & brake boots, Red Line MT-90 in the trans, Amsoil 0w20 in the engine, ATE SuperBlue Racing brake fluid.