My 1987 plus 4 appears to take 13 gallons...is that 59 litres? The car does 30 mpg so its a big range:nearly 400 miles
The sender is broken so I go on mileage. Luckily, being old, it's a simple press of a mechanical button to reset the trip mileage.
I don't seem to be able to buy a fuel sender to fit (it's a fiat engined car) so I guess I'm stuck with the mileage method.
Nick