Yet another oil consumption issue

Kreep

Hey guys,
I haven't posted much in here since I got by Z last year.
I bought my 2009 370Z Sport Touring from a dealer in Colorado last Oct and it had around 15,600 miles on it. LOVE the car!

This summer I noticed that it was eating a lot of oil. I would go 2 or 3 weeks and the dipstick would barley read any oil.

It's still under warranty until May 2014 so I took it into a local dealer here in Vancouver. They topped it up and had me come back in 2,000 miles to check just how much oil she was consuming.

Incidentally when they entered me into their service data base they mentioned that there was a bulletin for the steering locking mechanism and they would replace that for me as well.

After 2,000 miles the dipstick didn't read any oil so they just ordered me a new short block yesterday and will swap it out.
AND they mentioned that this was ALREADY done with me car at around 15,000 miles!! I had no idea. So the odometer is at around 25,000 miles right now. The first replacement engine only lasted 10,000 miles.

I love my car but this does not instill confidence it. I'm worried that this will happen a third time after my warranty expires. Do I sell it? I dunno, like I said I really love my car.

I wonder if my driving had anything to do with the second engine having to be replaced? If I had known when I bought the car it really only had less than 500 or so miles on it I would have been diligent in breaking in the engine. I drove it pretty aggressively, not crazy hard, but aggressively right off the bat.