I'm now a guy with a compressor

P.S.
Build a building outside the garage to mount the compressor in, the noise will be too much inside the garage.
A simple quick-creet floor, block building, wood, tin roof with vents goes along way.

I second this!

Are you supposed to use 10w30 in a compressor? check with the manufacturer/ owners manual. I thought they usually run straight 30 weight. I might be wrong.

Get a good water separator/ trap. Drain your tank and separator often.