Thanks for heads up on fuel sender. I didn’t know it was proprietaryIn my opinion, any rectangular tank is a better option than the OEM cylindrical tank that comes on the Fuso, as they take up less space and hold more fuel for a similar size.
The only real issues with changing the fuel tank are how you will mount it and finding a suitable fuel sender (if you want to use the OEM fuel gauge in the instrument cluster).
The OEM fuel sender has a non standard mounting pattern and a propriety ohm range (0=full, 150=empty and 50=half).
Hi Cameron, what did you end up going with? I am also looking at replacing the stock cylindrical tank (I think 33gal/125L) and want to go both larger (maybe ~200-250L (~53-66gal)) and retangular, as well as I would like to see about moving it from the passenger side mount to the driver's side (along with the fuel filter and such) so i can use the passenger side for camper-side storage boxes and such.Any suggestions on replacing the stock fuel tank with a larger one ? Does the an Isuzu 50 gal work ?