2000 malibu. I bought it used and there wasn't a manual available.

I need technical info and generally just the need-to-know type stuff, like how big the tank is, mpg, cylinders (know all those though).

where (on the internet) can I find this info?

the best thing to do it go to www.haynes.com or go to an auto zone and get a Hanyes manual. I think they are 15 dollars and this will tell you more then you will ever need. it tells you complete tear down and rebuild of the car and all the wiring diagrams.

about the same and maybe even better is www.alldatadiy.com

same as what they gave you above but a little more indepth. i think they are done by the same company though.. not sure.