don't worry about it. Carry a plastic can of fuel! :winky:
I knew I joined this forum for such helpful advice. :D
Anyone know ?
It may be on a screen but it's still a gauge, or to put it basically a rough guide. Every single one Lexus build will be different. The only way for you to get an idea is to carry a can of petrol and let it run out, even then if you did it again with more weight in the car and on different roads it would vary. I'd guess it would give you 25 /30 miles, but it could be 10 or 50