Oil Presure droping?
 

little problem is that when i stop on a red light or a stop sometimes the the oil gauge starts moving from left to right just a bit and then the car starts to shake a little whats might be causeing that problem?

I think what you are seeing on the gage is a result of the shaking not causing it. Oil pressure drop the lower RPM it can drop real fast once your idle goes below 700 RPM. Fix your idle issue and I think your Oil pressure will be fine.

As to what is causing your shaking or bad idle there are a lot of things that can cause that. Bad gas, Leaking EGR valve, Tired IAC. Almost all your normal tune up stuff ect.

ok cool thx i'll c because the previous owned didn't realy tok care of the car that much and the overflow coolant was all gone when i check it and the oil is realy black im going to get on it right away

change oil, new plugs, check plug wires and replace if lookin bad, check air filter and change if needed and scann for trouble codes.