After talking with the regional service rep and the dealer on numerous occasions, they finally tried to pull some codes. Nothing came up.
Sorry everyone, but I'm just not keen on a legal fight here. Mazda can prove that I don't have every receipt, so anyone looking at Mazda's warranty contract can reasonably believe that I have not upheld my end of the bargain with maintenance. Even though there is $13k at stake, and the Mazda guy all but accused me of this, I would never falsify documents. It's my mistake that I lost my receipts and believe me I will never let this happen again. I will, however, never purchase another Mazda product in my life and will caution everyone that I speak with to do the same. I have no qualms with all of the great people that work at Mazda, I just totally disagree with their belligerent stance on warranty issues (something that is absolutely essential when you're talking about $30k in hardware).
I've been told that the Mazda CAI may have something to do with my engine failure. Does anyone have any clear-cut documentation of this? Again, Mazda claims that in all but a very rare few instances a bottom end failure is due to lack of lubrication.
The dealership should have the results back on the oil any day now. Not that it really matters, but I'm very interested to see Mazda's reaction to a clean bill of health on the oil.
Cap - If you can point me to a junkyard engine (or someone that swapped out theirs for one of yours) I would greatly appreciate it.
Thanks.
-Brian