What does 'R' stand for?

Reserve. It'll quite happily run in the red region. btw. You don't have the computer that gives the estimated tank mileage I assume ?

Funnily enough lots of ppl puzzle over this.

Graham

Yes I do; kilometerage, actually. How much 'reserve' is there? i.e. how many litres remain when the needle gets to 'R', and does the computer 'know' that it's there?

Thanks, Steve = : ^ )

This has been asked before. the 'R' is probably and old relic from the days when cars didn't have any fuel gauge. I remember and old VW Beetle where you had to turn a handle for the reserve tank. It allowed you to drive to the next filling station. That is unless you thought "It will never happen", as I once did...

As do many motorcycles, even to this day

Yes, remember teh Seinfeld episode where Kramer takes a NG900 out for a test drive? It kept going forever...

My old Rover 2000TC ( P6 ) that I had in 1980 had a handle on the 'dash' ( by your knee actually ) that activated the reserve tank.

ISTR that Triumph Heralds also had reserve tank function that was vaguely unwieldy but presumably much liked when it came in useful.

Graham

Both the gauge and the trip computer take their reading from the tank sensor.

It's simply tradition ( and sensible practice ) to make the gauge 'under-read' in order to account for human nature.

The 'reserve' amounts to about 2 UK gallons or 9 litres IIRC for a 9000 when the warning light comes on which is usually just after the needle has entered the red sector.

Graham