2006 GS with 61,000 miles, all maintenance done by dealer, recently out of warranty, just had "oil consumption" study done. Was told by Lexus that burning 1 quart of oil / 2,000 miles traveled is within the "normal factory Lexus limit standards". This just doesn't sound right. If Lexus says you don't have to have an oil change but every 5,000 miles....the car will be down 2.5 qts by then. How can that be normal? Or, is it? (there is no oil leaking and no visible smoke being emitted.)
Could it be the pistons?
