does the low fuel light come on when starting the car? mine does not. is this normal? I tried to run the car until the light came on but chickened out after running the car for about 340 miles on the tank. the needle was in the red for a long time! I filled it w/ 15.2gals for about 22.5mpg. I read in the FAQ that the light comes on w/ 2.5gals left. I guess I should have drove it for another 10-12 miles.