What are the step by step instructions to change my oil in my 2008 Chevy Malibu LTZ?

Find the oil drain plug, remove, drain the oil into a pan, reinstall the drain plug a tighten, locate the oil filter and remove, check mounting surface to make sure the old gasket didn't stick. Coat the new filter gasket with oil and install hand tight. Refill the oil, make sure that you do not overfill. Start enigne for about a minute, shut off and double check the level, and that the filter and drain plug do not leak.
Some engines can be difficult, to identify the location of the drain plug and filter. There are thousands of configurations out there, If you are not familiar or can not locate the plug and filter, take the vehicle to a shop for service.