This may seem like an unusual question, but does anyone know about how hot the gas gets by the time it gets to the fuel rail (particularly for an L-engine)? The reason I ask is because I saw a fuel cooler from Flex a Lite that mounts inline with the fuel lines for cooling the gas. But I was thinking, just how hot could the gas be if it was just in the tank, pumped, and filtered? Shouldn't the temp not be much higher than ambient? Or does radiant heat soak from the exhaust under the car, fuel pump heat, etc. increase the temp of the fuel?