The reason that propane /butane refrigerant is much more dangerous than engine fuel system fires, is that the flamible refrigerant has direct access to the inside of the cab through the AC vents. A leaking / ruptured evaporator will release hot liquid propane inside the cab that will expand aprox 200 times into highly explosive / flamible vapor that quickly fills the cab. Sparks from the brush type AC blower motor is a perfect ignition source to light off the propane vapor.
Why risk that kind of danger when R134a is legal, cheap, avalible anywhere and it works.
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Today's Featured Article - The 8N and the Fox - by Zane Sherman. Dec. 13 1998, Renfroe, Alabama. Last niht I dreamed about the day that I plowed the field of about 10 acres over on what Jimmy and Dandy called the Ledbetter field. I was driving the 1948 8N Ford tractor that Jimmy bought in 48 new This was prebably in about 1951 and maybe even befor the house was built. This would have made me to be about16 years old and I drove the tractor for nothing and would have paid to drive it if I had had any money which I didn't, but neit
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