Re: oil consumption
dont worry about it mate, some use more than the others but as long as its no more than a litre every 600 miles your within the boundaries alfa states as normal. It seems oil consumption is something that it on the up these days, mates honda vtec drinks oil as fast as it drinks petrol. Just make sure you keep in on the max level and should be fine, try not to let it drop as running it near low seems to kill the variator very quickly.
Guys while on the subject of oil, had my car serviced at an alfa specialist and noticed my oil level was a good few mm above max, thing is it seems really smooth so have just left it-whats the max max level thats gonna do damage??