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Old 08-23-2019, 08:24 PM
xt-on-MNprior xt-on-MNprior is offline
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Join Date: Jun 2019
Boat: 2018 xt22 base
Location: midwest
Posts: 5
How much fuel on an empty gauge

Hello ya’ll. I have a 2018 xt22. My understanding is the fuel gauge is metered. It seems to meter very accurately. Interesting full to 1/2 tank is almost 20 gallons. From 1/2 tank to empty is almost another 20 gallons. It is advertised as a 60 gallon tank. A 20 gallon reserve seems like a lot of reserve. Is your fuel gage have 1/3 of the total quantity left on E?

2nd question is under the fuel menu I can’t figure out what the “amount” is showing me. It doesn’t line up with any amount of fuel I add to the tank. It seems to sporadically reset to 0. So confusing. Any advice on what it is telling me or how to reset it? I circled it in the photo.

Thanks!

Happy boating!!!!

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Old 08-23-2019, 08:48 PM
GottaLuvGravity GottaLuvGravity is offline
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Join Date: Jul 2018
Boat: X23 2018 6000
Location: Colorado
Posts: 41
On mine I believe that number is the gallons remaining so it should reset to the same number every time you fill up and hit the full button and then it slowly goes down along with the corresponding percent as you drive. I'm surprised full is 35.5 w/ a 60 gallon tank. Mine is 43 w/ a 57 gallon tank so keeping a 14 gallon reserve. Mine also won't go negative so once it gets to 0 it stays there and won't tell you how far into the reserve you have gone.
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Old 08-23-2019, 08:55 PM
xt-on-MNprior xt-on-MNprior is offline
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Join Date: Jun 2019
Boat: 2018 xt22 base
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How much fuel on an empty gauge

Interesting. I re read the manual. Perhaps I am wrong and F to E is 35 gallons just doesn’t make any logical sense to me. If that is true I would like to set mine higher. Thanks!

Last edited by xt-on-MNprior; 08-23-2019 at 09:10 PM.
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  #4  
Old 08-24-2019, 06:25 AM
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bturner2 bturner2 is offline
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Join Date: Mar 2008
Boat: Maristar 200VRS w/ X2 Package, 2007, 310HP... SOLD
Location: Brighton, MI
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Boat are notorious for having fuel gauges that are more of a suggestion than anything close to accurate. This is typically due to their irregular shape which is required to take advantage of the contours of the hulls to extract maximum capacity. That along with grounding issues, inferior quality components and in general less than desirable design. You can add all the screens and computers you want but "the nature of the beast" will catch up with you one day if you decided to use your gas gauge in a boat like people do in cars and count on actually having 4 miles left before you run out of gas.

Lastly, these boats have in tank fuel pumps which count on the gas to keep them cool. Running your boat at lower levels of fuel can significantly reduce the longevity of your fuel pump. The newer boats are much better about this than say the 2007 vintage boats where owners were warned that running below 1/4 tank would be detrimental to the fuel pump (see the fuel pump 101 posts for an idea as to how bad this was). Not sure how sensitive the new boats are but I've also used the 1/2 tank mark as s sign that it was time to start considering more fuel. At a 1/4 I'm nervous. But then again I've never needed a tow for running out of gas.
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Old 08-24-2019, 10:19 AM
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d2jp d2jp is offline
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Join Date: Jun 2011
Boat: 1992 PS 205-351w,285HO
Location: Central VA
Posts: 989
I record the hours when tank is filled on my phone. I base my need to refuel based on hours run, and ignore the gauge - even though mine is accurate. One day it might not be...
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  #6  
Old 08-25-2019, 12:48 AM
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Thrall Thrall is offline
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Boat: '06 X2 MCX
Location: Black Diamond, WA
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News flash, you can look at your fuel tank and see how much gas is in it and compare to your gauge reading.
So far, the old X2 has an accurate gauge and pretty well linear with actual fuel consumption.
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  #7  
Old 08-25-2019, 08:50 AM
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bturner2 bturner2 is offline
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Boat: Maristar 200VRS w/ X2 Package, 2007, 310HP... SOLD
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We had a stick with notches on it for the 1986 Ski Nautique we had. Gas gauge would peg until about 1/2 tank then stay there until just about empty. We replaced everything about 3 times trying to fix it and never got it right, at least not for long.

My 07 X2 was pretty good but I boat a lot on a Great Lake (Lake Erie). This is not a lake you want to run out of gas on. It got topped off every time it came out of the water at the end of the day regardless of use. Same goes for the new boat.
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Old 08-25-2019, 05:12 PM
millpondkid millpondkid is offline
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Join Date: Feb 2012
Boat: 84 mastercraft sold
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I also used a stick with marks on it. Called it the “preacher” because it will never lie.. not suggesting anyone should resort to a stick but it works..
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  #9  
Old 08-26-2019, 11:50 AM
LDA6339 LDA6339 is offline
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Boat: 2016 Mastercraft X-30 6.0L
Location: Dallas Texas
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On our X30 its a 60 gal tank, but full is listed as 48. Gives you a 12 gal reserve that you're not supposed to ever use because once you're below the 12 gal the fuel pump starts burnin up.
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  #10  
Old 08-26-2019, 07:40 PM
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maniacmikes maniacmikes is offline
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Join Date: May 2014
Boat: 2018 X-Star
Location: northwest
Posts: 609
Not on purpose, but I ran the Xstar down to 0% fuel remaining. Filled it up and it was like 52 gallons. It has a 65 gallon tank.

so yeah, there seems to be a lot of room for error there. Now, when I get down to 1/3 tank I don't stress as much about getting gas right away.
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