C-26 fuel level readings

[MitchWest]

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.

 

[Ralf H]

Hi there,

That's pretty much the best medicine, as the level definitely is susceptible to boat attitude and will read high when under way. You are right, it is a flat-bottom tank and the fuel level sender is offset aft a bit as well. This is why you get higher readings as the fuel shifts aft. You'll get used to the fuel consumption rate after a few tanks. As you hinted, go ahead and pull back during trips a few times so you can match the actual level with what you're seeing on the gauge with the bow high. Best policy is, once you have a good feel for normal fuel consumption, to fuel before you are in a situation where you're anxious for a reading 😉

Cheers!

Ralf