Winterizing
I have a 2015 Winnebago Journey with a 360HP Cummins diesel pusher engine. I live in Montana and am putting my RV away for the winter in a storage lot where I can't plug it into power. I am going to...
Forum Discussion
DutchmenSport wrote:
.....Well, I certainly never understood how a tank with a closed cap can attract water vapor, if it didn't exist inside the tank to begin with......
Think about it this way....if the tank wasn't properly vented, it would collapse as the fuel pump pulled suction to get the fuel to the injectors......so since the tank is vented to prevent that from happening, it also allows atmospheric air, and consequently moisture, to enter as the air replaces the former liquid volume space, and hence the condensation that forms when the temperature varies. If the tank is full, there is little to no air space where moisture can enter through the vented cap.
