Welcome to the site.
I'd start with entering your car into the garage (link at the top of the page).
Other than that, just start browsing around. The 100+ hypermiling tips and 65+ mods list are great places to start as is the wiki and just looking around the forum.
For a list of acronyms, see here:
http://ecomodder.com/forum/showthrea...e-ii-3505.html