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O.K., I can see that. Probably the reason it doesn't happen on cars is that the evap is so small in comparison to the coils in houses, etc. Also, cars use R-12 or R-134 whereas HVAC is normally R-22 or other. Different properties involved. Similar to discussion regarding diesel knock/detonation vs. specific gravity of fuels.
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ASE Certified Master Automotive Technician w/L1.
ASE Certified Master Medium/Heavy Truck Technician.
Certified EVT (Emergency Vehicle Technician)
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