Help, low fuel Message

[Huskerjetboat]

On the water and i got low fuel message. How far can I go. Was just on Half full before a little tubing.

 

[Geiger41]

You should have at least 5 gallons.

 

[McMark]

A small related tangent....when does the fuel gauge read correctly? At rest, or underway? I read lower at rest than underway.

 

[Murf'n'surf]

At rest is the accurate reading.

 

[Trm1765]

I have found that the bottom half is a very small half.

 

[itsdgm]

I have found that the bottom half is a very small half.

Agreed. My tank is tapered down on the bottom to fit the shape of the V-Hull. So the lower half of the tank holds less than the top. The fuel gauge however measures based on depth. this is where taking notes on fuel readings vs fill ups at the pump help give you a much better idea of how much fuel is remaining in the tank at any given time.

 

[MNdrifter]

Last year I had similar concerns about the fuel gauge. I collected data all year. Here is what I found.
2013 SX210 50gal tank. I like to have plenty of fuel so I never let it get below 1/2 tank on the gauge.

gauge--------average---------minimum
reading-----remaining-------remaining
1/2-----------19.9------------16.5
5/8-----------26.4------------22.1
3/4-----------32.6------------34.3
7/8-----------36.2------------36.1

 

[McMark]

I find that on average I put about 4 more gallons in to fill up than what my floscan shows. I.e. 34 gallons fill up shows 30 gallons used on the floscan.

 

[itsdgm]

On a side note. This past season I had to drain my tank (07 AR210) due to contaminated fuel. So I know that I started with a bone dry tank. I noted that my "50" gallon tank in stamped on the top with a 53 gallon rating. I added 10 gallons from fuel jugs to get it running again. Fired up the engines half a dozen times on the trailer (which couldn't have used more that a few cups of fuel). Then on my next outing I put in 47.7 gallons at the pump. So there's going to be a bit of room for error when figuring fuel mileage and consumption because there's probably a gallon or two in the filler tube, flex in the tank and probably a bit of inaccuracy at the fuel station