C-26 fuel level readings

MitchWest

Member
Joined
Aug 18, 2026
Messages
7
Fluid Motion Model
C-26
Hull Identification Number
FMLC2601C526
Vessel Name
Still Alive
I have a new to me 2016 C26 FMLC2601C516. The fuel display on the Volvo ECM display always reads 79 gallons when underway. When moored, it displays a plausible number of gallons, and changes as fuel is added. I see that many other models exhibit this same symptom. I don’t know if it changes at the lower end of the tank. I have been a little nervous abour running it low when I have no idea how much there actually is. If this is a common issue related to a flat tank and hull squat when underway, I will stop trying to troubleshoot. The burn rate seems fine, so I can just stop if I an anxious for a reading.
 
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