[landrovered]

At the risk of angering the Porsche gods... my boxster is no longer making the noise.

I topped off the pentosin (it was not really low) and it made the noise a couple of more times and then it stopped on it own.

I would not relate the cessation of the noise to my merely adding a thimble full of pentosin any more than I would suggest the effectiveness of offering blood sacrifices.

I am still just as stumped on this one as I was before.