Re: Brera - Have i got a leg to stand on?
I do write failure reports (not for Alfa or Fiat Auto though), and I would be looking for the following:
1) That the oil level guage was heeded on start up
2) That at regular intervals, the dipstick was also checked
The oil pressure warning light is there to tell you to STOP the engine if it doesnt go out under cranking, thats the accepted use of it, you might just save an engine if you shut off while moving under illumination and dip the clutch.
For others on here -- the oil pressure warning light doesnt mean 'have a quick look at the dipstick at your convenience'
There is a partial story here - did you tell them that you added the extra oil at the roadside? if not, how did they know the vehicle suffered oil starvation, they would need to inspect shells for this and if the engine was full of oil, one would suspect the oil pump or filter assemble as the issue, although you can come to the conclusion that the engine is full of virgin oil with ruined bearings too.
If you have been a good boy and the oil guage and dipstick were regularly checked, and up to date, and you ran out of oil on a run, one would suspect a cylinder head or turbo issue that allowed oil into the combustion chambers which would then burn off through the compression ignition process, though for a large quantity in a small period of time, one would notice a lack of engine speed control via the throttle as it was getting an alternative fuel supply.
Jtd bottom end failures are very rare, and in low mileage examples, typical examples of this engine consume very little oil in between services.
Alfa UK dont really need to cover their ***, as the engine is made by FPT and if they can prove that FPT supplied parts or assembly are at fault, they can recover all monies, the same is true if it was a KKK or Garrett turbo issue, they can recover the money.
Perhaps if you could supply some more information, we might be getting somewhere.
Personally I suspect an oil hose or the filter assembly working loose, which if you checked the dipstick regularly you would have caught before major damage occured.
Edit - what effect did the 4-5 litres have on the dipstick - and did you really drive it for 2 days with the oil light on?
If you did drive the car with a red light on - your warranty is truly void and you are likely to be in breach of your contract hire agreement.
(dont shoot the messenger!)