Temp gauge wont come off the bottom. Been like that since I got the car.

Heat blows hot.
No radiator leaks.
Coolant levels are fine.
Car hasn't overheated or ran hot whatsoever.

Sending unit maybe?

Also, Low oil level light comes on.
Once again.

Oil level is fine, I check it everyday.
No knocks or noises.

Sending unit again? Relay maybe?

Im trying to slowly work these bugs out, the only things wrong with the car seems to be these gauge problems. Hoping its not some computer in the car thats going to run me a grand. lol.