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Update: Since this article was first published in 2011, R-12 has been phased out and new refrigerants have been introduced in an effort to reduce depletion of the earth’s ozone layer and to minimize the global warming potential of these chemical compounds. Story and photography by Jim Marotta What was once a basic system to… Read more

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Story and Photography by Jim Marotta Back in the day, no matter which brand you chose, antifreeze was green. The glycol-based formula contained silicates as corrosion inhibitors. You mixed the antifreeze 50/50 with water and poured it in the radiator. As the engine operated, the antifreeze performed its primary duties of carrying heat to the… Read more