Update -- when I didn't hear from the dealer, I called them
Interesting that they asked you that, considering the owner's manual recommends changing the oil at 5,000 miles the first time, using their severe maintenance schedule and 7,500 miles for non-severe. Not that most people go that long on oil (I go 5,000), but there's nothing in the manual that says you need to change the break in oil at 3,000.
The break-in oil change is my idea. (Maybe not so smart this time)
The Service Consultant said tech found the oil drain plug was missing. (curious) The Service Consultant said that since the Mazda dealer that performed the service last week sold the dealership this week; this is not a warrantable failure. (more curious)
There is a hole in the block so engine is history. The resulting fire damaged some of the electrical harness, so all things considered the car maybe a total loss. The service consultant suggested I call my insurance carrier. (I dont think so, at least not yet!)
The wife said there was no indication of low oil pressure prior to the engine failure. No idiot light, no increase in engine temperature, just a sudden failure. She told me that she saw the oil pressure light come on as the engine seized. The coolant gauge showed normal.
I would expect that there should be some indication that the engine isnt getting lube at least a short while before something breaks loose and punches a hole in the block. (low pressure light, increasing heat and perhaps some noise from the valve train, bearings and or pistons slapping the cylinder wall) Am I missing something? Im not the slightest bit convinced that this is at all my wifes fault or our responsibility.
I asked the Service Consultant if she called the area Service Manager to discuss the situation. She said that because the dealership is an independent business there is no one to call and Mazda wont talk to them about my car. (curiouser and curiouser) I asked her to have her Service Manager to call me. No response.
She did give me the number for Mazda, Customer Assistance, so I called them. The representative was very responsive and has opened a case. Hell be calling the dealership and the District Service Manager. Ill keep you posted.
Some questions. Have I missed something? Is it at all normal that low oil pressure would cause this degree of catastrophic failure without any warning? Would the ECM record a low pressure or high engine temperature fault before the failure?
Sorry this is so long.