On 22 Jun 2005 07:27:39 -0700, "dean" wrote:

Because every professional user I have ever seen is using 10W30 engine
oil.

Scrotum or bladder cancer. No thanks ! Whatever you use as an oil,
you're also breathing it as an aerosol. I won't use engine oil and I
certainly won't use used engine oil.

There's also the issue of staining valuable timber with it.