Here’s the latest reader question, along with my reply!
Roberts asks: A year or so ago, i went to an AC Delco current products introduction. One of the subjects was the use of the new freon, R1234yf. I recall the instructor saying by using the new freon, the EPA would give a mileage credit against the new CAFE mileage requirement of 51 mpg coming in the next couple years. What credits against the mileage requirements is the EPA giving for various technical reason? Is this an admission that the 51 mpg is just crazy talk?
My reply: This business of changing refrigerants is nominally about “protecting the ozone” (the reason trotted out for the banning of R12) but I am convinced it’s about protecting the revenue stream. Outlaw R12, impose hideous taxes, prohibit it from being sold to people not “certified” – and thus force them to either pay a shop or replace with the new refrigerant, which then gets outlawed/taxed in turn.
AC systems do use energy – whether mechanically driven or electrically driven – and so I assume an AC system that uses less might be eligible in some Byzantine formulation for a CAFE credit.
But I’ll tell you what: Nothing cools like an old GM Harrison AC rig with Freon in its veins!
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