Fuel tank capacity

Klem

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I have a 2017 Freedom dual console. Can’t find fuel tank capacity.
Also when blinking dashes occur where fuel amount is I assume that indicates it’s low and then fill up. Once it takes 80 gal, the next time it’s 100. Is gauge just not dependable?
 

DennisG01

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There's a plate on the fuel tank that will tell you the gallons. Or, look in your owner's manual - or download it on Grady's site.

Boat sending units aren't known for being super accurate, but they are generally consistent. For example, 50% on the gauge usually doesn't mean 50% in the tank, but it will equate to the same amount left in the tank, time after time. If you're filling up on a trailer, that can skew things even more - same with wave action at the fuel dock.
 

seasick

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I have a 2017 Freedom dual console. Can’t find fuel tank capacity.
Also when blinking dashes occur where fuel amount is I assume that indicates it’s low and then fill up. Once it takes 80 gal, the next time it’s 100. Is gauge just not dependable?
If you continue to wait for the flashing bar before adding gas, someday you will run out of gas:)
The gauges are somewhat inaccurate because the angle of the tank changes as the boat is loaded, trimmed, etc.
At rest without passengers it is more accurate but....
Each bar represents a certain gas level RANGE. Knowing when the number of bars change and/or when one solid bars changes to one flashing bar gives extra info but in general you are not staring at the gauge continuously.
On my 80 gallon tank, when one solid bar changes to one flashing bar, I have close to 20 gallons but the one bar stays flashing for the next 10 gals of gas used.
If you just look at the gauge and one bar is flashing, you don't know if you have 20 gallons or 10 gallons or less of gas.
Over time, you will learn how much gas gets used for your modes of operation. In general to be safe, for local trips, before leaving the dock, check the resting level indication. Gas up if you see less than two bars. For long trips, use a higher measure.
Also note that if you typically use 10 gallons or so for a day outing, when you gas up, don't fill up the tank as long as gas is easy to get. Add enough for two day trips. Filling the tank just means a lot more weight and the extra weight lowers fuel economy and may affect performance.