Please help me... My gauge is lame

[mysvxrocks]

So I had 1/2 a tank of gas, and about 5 minutes later I see this...



So wtf is the deal with it. Its not just now happening, its been like this since I bought the car. Once it goes all the way down like that, it goes back up to 1/4 tank, then back down to that. I dont see a gas light at any time... But Ive seen it come on when I start the car before...

I need to know how much gas I have.... Can anyone help me?

-Dennis

Also, do all SVX's gauges take like 10 minutes to go back up when you fill the tank? In my old focus, the gauge jumps all the way up instantly, and with this car... 10 minutes