>I am a firm believer in replacing defective parts, not covering them up with
>something.
>
>Pete
>petez@gte.nety
>'83 Vanagon

A stuck lifter isn't a defective part if it can be unstuck by adding a high
detergent additive to cut the varnish and unstick it.  I don't know about
this Valve Medic, but if the oil came out black after 5 min, I'd be tempted
(compelled) to do a second oil change in  a hundred miles or less to get
ALL the crud out.  I've read of old bugs cooking their engines from running
thousands of miles with non-detergent oil, then being switched to detergent
oil.

Dan Fuller
'90 Carat
'63 Bug