Gas shelf life

[Rust_never_sleeps]

Originally Posted by 72c20customcamper

Well technically the moisture condensates from the air inside the tank it’s not coming from the gas itself. Vented systems suck and expel atmosphere with temp changes . But yes it’s best to keep it full so less atmosphere is exchanged but there always will be some exchange

I found the article back, and as they say, water doesn't transfer directly from air to fuel, it needs to condense on a surface.
Keeping it full works because less surface of the tank is exposed, it has nothing to do with how much damp air is inside

https://www.boatus.com/expert-advice...yths-clarified

Also a good bit about how ethanol dissolves gunk from the tank that would otherwise presumably just fall into the sludge and stay out of the way