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Thanks everyone for the recommendations. I believe it was the Valvoline oil because the last oil change I had done I got Pennzoil, and I have not had the same symptoms I had before toward the end of my oil life. This is just what I've noticed. Other then that I have no proof it was that oil...

Okay, so I've used Valvoline in my truck for some time, but recently discovered that it causes my oil pressure switch to clog up, which makes the computer think the pressure is all out of wack. I found that a simple oil change fixes the issue, but I'd like to prevent it in the future and try to...