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      10-12-2020, 01:10 PM   #9
X5 45e
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Drives: BMW X5 45e
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Quote:
Originally Posted by MissionPerformance View Post
Yes Im sure about that. G20 and G05 both have pressurized tanks. Official reason for introducing that is for emissions reason: By pressurizing the tank and removinghe EVAP system, you are stopping the fuel favors from escaping into the atmosphere. The bonus "side-effect" is that you create a fully sealed system, preventing oxygen and condensation from getting in, thus stabilizing the fuel for much longer periods.
If I understand the text above correctly I think that the pressure in the tank increases by the fuel vapors that can't escape because of a valve and not by a pump actively building up pressure in the tank. Or are we saying the same thing? The end result is the same, a pressurized fuel tank.
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