Originally Posted by Stridenttube
If I change my oil will it prevent it from getting worse?
You are still assuming this is a symptom of bearing failure, and I don't think that is the case. Changing your oil never hurts, but I still think it is a sender/gage issue. There is also a spring loaded relief valve located in the oil filter housing that sometimes gets stuck and causes a drop in oil pressure. Simple matter of pulling it out and cleaning it.
I always try to fix problems by taking the obvious steps and seeing where that gets me. In this case the obvious step is to change the oil, filter and sending unit. It MAY fix the problem, but it will also give you an opportunity to see if there is metal in the old oil. Make sure you drop the oil into a relatively clean container so you know any contamination you find came out of the engine, not from the container.
Don't increase oil viscosity. Any gain in pressure you achieve will be at the expense of flow. Are you using 10W30? If so, stick with that for now.
2001 Bonneville SSEi (retired at 365,000 Kms.)
2014 Jeep Grand Cherokee Overland (yes, I know its not a GM)