Is Condensation Something to Worry About with Aluminum Fuel Tank

Updated 04/15/2019 | Published 04/13/2019

Question:

How does warm days and cool nights not create condensation on the inside of this fuel tank. Transferring water into my fuel and into my fuel system. Aluminum sweats as the air cools off . Any explanation will be greatly appreciated!! Thank you.

asked by: Justin B

Expert Reply:

It's like drinking cold water out of a metal cup. The condensation is on the outside of the cup where the temperature change and air are but your drink doesn't get watered down since it doesn't form condensation on the inside of the cup.

It's worth noting that condensation on the outside of a tank does not mean there's same condensation on inside of tank. Air is a great insulator and if you consider the fact that the air trapped in the tank is going to stay same temperature as the fuel the inside surface of the tank would be much less likely to reach a point where it would condensate.

expert reply by: Jameson C