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**Dave** · 08-25-2014, 10:43 PM

FWIW,
I have to agree with leddzep. On the hottest day, the factory set-up is by far the coldest compared to the aftermarket. Even when you call the aftermarket companies they tell you their set-ups are not as cold as the factory one. However, the aftermarkets use less power and are more eco friendly not using r-12. Temperature differences vary, but most r-12 systems when properly vacuumed down and charged, etc., will be 36-38 degrees, 134 is seems to be about 42 degrees. So not a lot of difference here but on that hot day with high humidity, you'll be glad you have it.

08-25-2014, 10:43 PM	#15
Dave DND Trucks Join Date: Dec 1999 Location: NW Indiana Posts: 2,376	Re: A/C factory or Aftermarket FWIW, I have to agree with leddzep. On the hottest day, the factory set-up is by far the coldest compared to the aftermarket. Even when you call the aftermarket companies they tell you their set-ups are not as cold as the factory one. However, the aftermarkets use less power and are more eco friendly not using r-12. Temperature differences vary, but most r-12 systems when properly vacuumed down and charged, etc., will be 36-38 degrees, 134 is seems to be about 42 degrees. So not a lot of difference here but on that hot day with high humidity, you'll be glad you have it. Last edited by Dave; 08-26-2014 at 05:37 PM.