I shot the video about 5 minuets before I turned the idle down, I will try and get a recording of the noise it makes it the cab, it is a lot more prominent.

One of my neighbors also threw out the oil into radiator idea. I changed the antifreeze out a few weeks ago and there was no oil in it. I checked the radiator again and there did not appear to be any oil.

As for the mental glitch, I might go with that but both my Dad and I that have been documenting the oil problems. I filled it full (checked after 10 minute idle), then he drove it for a little the next weekend and let me know it was a 1/2 quart low. Then I drove it the following weekend and noticed it was a full quart low.

When I changed it I filled it until the dipstick said full which was 5 quarts, should it have been 6? What weight of oil should I be using? I currently have 10w-30 in there.