Again I have a 98 29 fever 454s. I know how much fuel I put in it. But sometimes the low fuel light is on and sometimes it is not. But I have no idea just how much the tank holds. Or about how much is left when the low light does come on. Anyone know for sure?

My 97 has a 150-155 gal tank

The sending unit has two very small adjustment screws on it, one marked empty and one marked full. Run it to near empty and set the empty level just before "e" then fill it up and set the full right at full. When my light comes on I have about 4 gallons of fuel left, so I gas up at 1/4

my 96 29 holds about a hundred gallons.

My 2006 29' Fever holds 132 gallons. I've also read 140 gallons. I have heard from others as the tank has a bit of a "V" shape to so the first 1/4 goes down very slowly and it gets progressively faster. The last 1/4 of a tank may hold only an 1/8 of the total capacity. Several members have said when their gauge reads 1/4 they are nearly out! I will explore the last 1/4 reading sometime this summer when I have an extra 20 gallons onboard and am right out in front of my home.

Fountain told me my 32 holds 130-135 but they doubt that you could get it full.

I have put 100 gallons in when the gauge read a 1/4 while on plane.

This is a true statement I have ran a 27 and a 29 until they were empty...lol. Its full all day then it starts moving to half and then a quarter then it stops shortly there after. If the needle stops bouncing you're done. the tank has a V-shape bottom and located under the floor in the center and runs to the keel

Never filled from dead empty but did put in 132 gallons in an 88 29 fever.

just a piece of advice is do not fill your tank completely then let it sit in the heat and sun all week cause the fuel will expand, run out the vent down the side of the boat and will mess up paint jobs, wraps and gelcoat I have seen it happen twice already. I never have a full tank until Im ready to run and burn some off that same day or weekend.

My 97' has 131 gallon tank.