I have a 2012 Impreza with
I have a 2012 Impreza with 40K miles on it. Checked the oil (full) before starting a recent trip - 500 miles later, the oil warning light was on and I was down a quart. It uses a quart or two between changes under my normal driving conditions, a combination of highway and local. At high speed for a long period, it will use a quart in 500 miles. It has happened more than once. Am currently having the dealer monitor oil consumption. I believe they're trying to blame my having a non-dealer change my oil. The oil used was within spec, just didn't cost me $135 for the change, like at the dealer!