On my 1988 20 Dual console, the deck hatch one up from the stern hatch that shows the bilge pimp and bilge plug gives access to the top of the fuel tank. Open it up and look for a metal tag on the tank. If it's covered in crud, wipe it off gently with a damp rag. The fuel capacity will be on the tag. Mine reads 79 gallon capacity.
Fuel capacity of 1995 23' Center Console Sea OX
Linear Mode
