Like others have said, if it does start burning oil, just keep a good check on it. I have a little s10 that burns about a quart a month, purs like a kitten. Only thing I do different is I take out the spark plugs every oil change and spray them with carb cleaner to knock off the extra carbon from the burning oil.
But this 2azfe engine has a history once it starts burning oil it steadily gets progressively worse to the point it is burning oil at the rate of a quart every 300 miles or less. It will eventually burn up the engine.