Why is my 2006 using 2 qts of oil every 1,000 miles?

check to see if drain plug is tight,remove oil filter make sure their is onley 1 gasket,rubber ring around it,make sure valve cover bolts are tight,worst case,rear main seal is bad.if smokeing broken oil ring on a piston.

Any oil under the car where you park it? Any oil on the engine or smell of burning oil when driving or just parking it? If so, you are leaking oil. At that rate, it will be a major leak. The answer above is a great advisory start. Engine gaskets don't usually leak this much all at once. Did this start suddenly or has it been gradually getting worse? Did you notice it just after an oil change? The double gasket in the oil filter is a great place to start. Also, you may have damaged the oil pan and there is a leak from there. If you have dark residue inside your tail pipe where it exits the car, it is internal, rings or piston. Trade in the car or have the engine replaced/overhauled if there is black residue in the tail pipe.