THE squealing is probably caused because the mechanic who did the last reline didn't use anti-squeal compound. You can find anti-squeal products at your local auto retailer and that should fix your problem.

I CAN'T predict when your engine might expire, but you could get a guide by having a mechanic check some of its vitals. You say it drives well and isn't using oil, which is a good sign. But check to see if it's blowing smoke under any conditions and have a mechanic run a compression test to check the state of each cylinder. If all that comes out positive, I wouldn't be concerned about the engine giving up in the near future. As for the Astra, I have no problems recommending it.