Moisture is one of the leading causes of internal engine corrosion in aircraft that don’t fly often. This session explores how engine dehydrators work, when they make sense, and the tradeoffs between building your own and buying a ready-made system. Practical, straightforward guidance for owners who want to protect their engine between flights. Session type: Forum · Interests: Engines — Skyfarer is not affiliated with the Experimental Aircraft Association (EAA) or EAA AirVenture Oshkosh. This session is listed for informational purposes from the official AirVenture 2026 schedule. Times and locations can change during the event — verify on the official session page: https://events.rdmobile.com/Sessions/Details/3539902