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Obviously the R134a fittings are going on R12 cars... because they leak.
The questions are:
1) How many cans are being used to convert from R12 to R134a,
2) How many cars are being used to refill cars converted to R134a,
3) Of the cans used to fill factory R134a vehicles, post 92 year cars, what is leaking
Define a 'shade tree mechanic', lol
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