Consumer Reports magazine says its annual auto survey shows that some newer Audi, BMW and Subaru vehicles can burn too much oil.
The magazine says in some cases owners of 2010 to 2014 models reported having to add a quart as often as once per month.
It called on auto companies to back their products by fixing them under the powertrain warranty or by extending warranties.
The survey found no link yet between oil consumption and other engine repairs. But the magazine says people have to pay attention to oil levels and watch for dashboard warning lights to avoid engine damage.
Messages were left seeking comment on the story from all three automakers.