Excessive oil consumption: i am experiencing a significant problem with my subaru impreza 2012 with excessive use of oil and the oil light going on. i understand from the service people that this is caused by "blowback" past the cylinders, causing excessive oil use, inconvenience to owners, and an inflated cost of ownership (synthetic oil is $8/qt.) subaru insists this is normal but when i traded in my lexus at 257,000 miles with never an additional drop of oil between oil changes, i certainly didn't expect to trade it in for an oil guzzler like the subaru impreza. subaru will do nothing and insists this is normal - - at least for them! it was fixed for the 2013 and 2014 models but they are avoiding doing anything for those who purchased the 2012 model and are experiencing very inflated cost of ownership as well as tremendous inconvenience. *tr