The most I’ve ever filled into my car was 34.00L. That was one of the scariest moments I had when I had already pushed to the limit by ignoring the warning light and drove on for several miles. Literally, I felt the car start to splutter afew times as I entered a BP station that was open (bad luck that my usual ones were all closed for the night, or refuelling!)! So relieved, but now I know what’s the maximum capacity! Hahaha!
I also reset my driving range “A” setting after each refuel. Typically get to 280-320miles range, depending on how hilly, traffic, seasons and if using AC. So, now trained myself to start looking for petrol stations about 260mile mark.