[Christ]

As long as you have a manual, you're fine rolling around w/ the engine off. Please "test" yourself in an unoccupied area, until you're used to the lack of power steering, such as a parking lot, at low speeds.

Don't get hurt, and there's a link at the top of the page that describes 100+ Hypermiling Tips that you can follow from any page on the site (that I'm aware of.). It has good information that you might want to start with before getting too involved with ideas.