how many miles are on your car? by the sounds of it, if you aren't seeing any oil on the driveway, this oil consumption is probably your rings, pretty common in older vehicles, as the miles build up on the engine, the rings start to wear down and even crack, as this happens, oil is able to slip by the piston and get ignited in the combustion chamber..... if you're not smoking white smoke from your exhaust pipes, that means that its not a traumatic ring issue.... best way to check would be to drive up a hill at a decent speed and then let off the gas, if you can see any white smoke come from your car... its the rings wearing out... to fix this problem temporarily start using a high mileage engine oil and maybe also use lucas oil additives.... if you're already starting to get ring wear though, sooner or later you're going to need an engine rebuild... and when you do get to that point.... we'll be here to help you through that