The car has a 16.9 gal tank. After 45 miles, it says it is down to 3/4 full. After 90 miles it reads 1/2. I get the 35 miles to go signal and the lit gas pump at 12 gallons gone. With 5 gal left, I could still go 150 miles on the highway, but the gage says I am almost empty. Something is wrong. The first dealer said they called Chrysler. Then I call to find out that the dealer didn't call. The second dealer plugged into the computer and of course there was no error message. BUT, there is definately something wrong.

Someone please help
thanks

Ken