I understand very clearly that the insulation keeps the heat in to help heat the fuel. What I'm saying is that another company that I'm involved with has the diesel fuel additive that will also increase the engines efficiency. So with the heat shield and the fuel additive working together will vastly increase the engines power and efficiency. Besides it is it is EPA certified for use in diesel trucks. I'm aware that large ships a lot thicker fuel and that's why they heat the fuel.
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