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Discussion Starter · #1 ·
I did hvac work years ago when vehicles made the switch from R12 to R134a. Now i read that epa or powers to be are making new vehicles use a new expensive refrigerent. R1234?
Wonder what our Mavs will
have?
 

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I think r134a but r1234yf is supposedly more efficient so maybe it'll be in both engine options to keep mileage up
 

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Basically everything new is using R-1234YF. The machines for it are gonzo expensive since they need to be connected to the vehicle to verify what model it is to compare with a list so it can only fill a set amount. However the mechanical components and pressure are pretty similar so if you need to evac and refill yourself they're still mostly R-134a compatible.
 

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Since not working with Refrigerants anymore I am out of the loop.
Reading up a bit the R1234 is compatible with R134a but will have
different Fitting and also the evacuation procedure will be more
detailed than others.

From what I see its the Ozone Depletion factor (ODP) that this came
about. Just like when they switched from the R12/R22

Probably for quite a while it won't be a DIY recharge.
 

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As a add on for last post. The R1234 is Compatible with R134 in that its
Pressure and temps are close but they can't mixed hence the
different Fitting. Thanks Ed
 
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