R-22 was the workhorse refrigerant behind four decades of American cooling — yet few owners know how it actually works. A technical guide to its properties, operating pressures, oil compatibility,...
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Your model year tells you which automotive refrigerant you need — but federal law is not the whole law. Why Washington and California say no to cans that are legal...
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R-22 is still legal to own and service — but legal and affordable are not the same thing. Production and import ended January 1, 2020, yet the EPA never banned...
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