I risk it because it cools so much better, but that's just me. I am not worried about an evaporator rupturing and blowing me out of the cab, as the chances of that are about the same as me winning the lottery. There has yet to be a single injury reported from the use of hydrocarbons as a refrigerant. The system has only a few ounces of propane in it, so if something did happen and it did ignite, there wouldn't be much to burn. I'm not going to say anyone should use it over r134a, I'm simply sharing my experiences. I also have all new seals and hoses in my A/C system, which makes a difference. If you have a leak, I wouldn't use anything until you get it fixed or at least pinpointed so you know it's not blowing into the cab, as r134a is supposedly carcinogenic according to some recent reports.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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