At the Nordschleife the WTCR cars get a low fuel warning with 25% fuel remaining (perhaps more but 25% comes with the default setup). But at other tracks you don't get the warning till you're much drier. Is the low fuel warning track specific?
I may be allowed to answer this? Low fuel warning is basically lap specific. Should be around 1-2 laps left. Most ISImotor related sims are giving red fuel numbers or low fuel warnings, if activated so, on this amount of laps left. A percentage of 25% is apparently worth 2 more laps on the NoS, i would assume, while it would deliver more laps on a shorter track, so no warning at such a high percentage there. It's a bit annoying, though, because R3E rubbs the low fuel warning in the face of the driver very frequently and overly visible on the dashboard.
Yes totally agree, also made a thread about this constant ultra big warning right here: https://forum.sector3studios.com/index.php?threads/low-fuel-warning-too-big-on-display.13767/ The fuel warning pops up on certain fixed places, every time. And a lot of cars have this very big fuel warning picture, which blocks the whole display. Also somebody (me) created a meme about it: