[clickman]

If you don't want to change the oil, i.e. drain it out of the engine drain plug, to get the level down, you can take some out by just pulling off the filter canister. I forget how much it is, but you can search the forum or maybe it's in your Bentley manual (if you don't have one, get one if you're planning on doing much of anything yourself).

That "loud mechanical metallic roar" at higher RPMs doesn't sound good though. Roar, yes, metallic, no.