Why Does the Fuel Capacity Listed in My Portable Generator Owner's Manual Seem Inaccurate?

The fuel capacity listed is the total interior volume for the fuel tank. Air space is required to allow for expansion of the gasoline during warmer temperatures. So the actual amount of gasoline that will fit in the tank is typically less than the stated fuel tank capacity.

  • Mar 31, 2023
  • Knowledge

Title
Why Does the Fuel Capacity Listed in My Portable Generator Owner's Manual Seem Inaccurate?
URL Name
Why-Does-the-Fuel-Capacity-Listed-in-My-Portable-Generator-Owner-s-Manual-Seem-Inaccurate

Public Answer
The fuel capacity listed is the total interior volume for the fuel tank. Air space is required to allow for expansion of the gasoline during warmer temperatures. So the actual amount of gasoline that will fit in the tank is typically less than the stated fuel tank capacity.
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