This thread is very helpful. Thanks guys.
I already have 1250 miles on my new Impreza and I'm taking my new ride and a couple kayaks on a nice vacation to the Adirondacks tomorrow (approx. 500 miles roundtrip). Once I return, I plan on doing my first oil change… so that should be right around 2000 miles. I'll probably just go with the Mobil 1 from Walmart - the price is right, and its highly convenient.
I'm thinking of installing a fumoto valve, but I'm not sure which model is right for my 2012 Impreza. I've searched the forums, and some people say the F-105N is the right one, but others say its the F-108N. Can anyone set the record straight?