Fuel Quantity at the Tabs for 69F

[merlin]

Anyone have a good idea how much fuel is in the tank when it's touching the tabs on a 69F?  Draining the tank not practical where I am.... thanks!

[N201MKTurbo]

I think it is stamped on the tab, but it is 25 gallons.

[Ragsf15e]

  On 11/14/2023 at 12:54 PM, N201MKTurbo said:

I think it is stamped on the tab, but it is 25 gallons.

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Correct.  You have to look real close, squint and have the right light, but it’s stamped on the tabs. 25gal each side, 50 total.

Edited November 14, 2023 by Ragsf15e

[M20F]

They are as others have said really hard to see.  I find using this stick lighter makes it easier to see them. 
 
 

[Igor_U]

Real question is:

Is it 25 Gallons when fuel touches the bottom of the tab or is level with the hole through the tab?

[EricJ]

  On 11/16/2023 at 12:06 AM, Igor_U said:

Real question is:

Is it 25 Gallons when fuel touches the bottom of the tab or is level with the hole through the tab?

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The tab.    You can play around with it and gauge how much fuel there is with the various landmarks, like the bottom of the hole, etc., so you can fill to the desired amount just by looking at the tab assembly.   

 

[Igor_U]

  On 11/16/2023 at 1:06 AM, EricJ said:

The tab.    You can play around with it and gauge how much fuel there is with the various landmarks, like the bottom of the hole, etc., so you can fill to the desired amount just by looking at the tab assembly.   

 

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This is my experience after fueling to the tab and checking the used fuel by engine monitor, however I saw some people saying it's the hole.

[Ragsf15e]

  On 11/16/2023 at 1:10 AM, Igor_U said:

This is my experience after fueling to the tab and checking the used fuel by engine monitor, however I saw some people saying it's the hole.

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Mine works out to the bottom of the tab as well.  The reason for the hole is that it saves 0.02 ounces of weight and allows for 0.069 more ml of fuel in the tank.

Just kidding of course. Nobody knows why the hole is there.

[merlin]

Thanks to everyone for your thoughtful replies!  I tried the stick lighter but now can't see anything at all  

 

[EricJ]

  On 11/16/2023 at 5:07 PM, merlin said:

Thanks to everyone for your thoughtful replies!  I tried the stick lighter but now can't see anything at all  

 

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Sometimes the eyebrows grow back. 

 

[merlin]

As a bonus... I have the JPI 730.  I figured out to add aux tanks into the JPI (even though I don't have aux tanks) and set my mains to 50gal.  Now when I fill to tabs (and thanks to yall) I can click mains full, aux 0.  When I fill to the brim, I click mains full/ aux (14gal) full.  SOOOO much better than manually adjusting down 14 gals every time.  Cheers all!

[Pinecone]

That "trick" is outlined in the 830 manual.