"Green Machine" is a song by Kyuss from their 1992 album Blues for the Red Sun. Written by drummer Brant Bjork, it was released as a single that same year.
The back of the CD case contains the following review:
The skyscraping amp inside the CD slick of Blues for the Red Sun - the second master-work by Palm Desert, USA natives, Kyuss - just looks loud. It's an image that recalls another era. A time when the…
I've got a war inside my head
It's got to set your soul free
I've got a veil inside my head
A wheel of understanding