Quote:
Originally Posted by somerandomguy
Would armaflex on diesel fuel rail lines help at all?
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If the fuel is pre-heated at the tank (some vehicles have a fuel heater as part of a cold-weather preparation), maybe retaining such heat would make it easier to switch from the liquid phase and release vapours right after being injected. But I wouldn't hold my breath for a simple insulation around the fuel rail lines to be much beneficial without any other cold-starting aid.