2014 Subaru Forester 6MT 2.5L NA
ODO: 103,434
Consumed: 4.5qt
Top up: 4qt
Miles on oil: 103,434 - 93,550 = 9,884
Estimated hours on OCI: 9,884/44 = 225
Out: 3 quarts Mixture of: Initial fill (1 gallon Redline 10w40 and 1.5qt M1 EPHM 5w-20) + 4 quarts top up blend (4.5 quarts Traveller SAE 40 + 2.5 quarts QSEuro 5w40 + 1 qt ETO2380)
In: 3 quarts blend (4.5 quarts Traveller SAE 40 + 2.5 quarts QSEuro 5w40 + 1 qt ETO2380)
Off: XG7317
Estimated hours on filter: 225
Miles on filter: 9,884
On: XG3593A
Car consumption status: 4.5 quarts over 9,884 miles (2,196 mi/qt) or 225 hours (50hr/qt)
Consumption is not very dependent upon RPM anymore; I'm glad because I want to drive this car over 3k rpm without conviction (the people stuck behind me do, too.)
Early in the OCI I removed and cleaned the throttle body and replaced the PCV with a "Standard Motor Products V554 Valve" (a steel-bodied one, because apparently this is the 3rd iteration of a PCV valve the FB25 Forester was given over the years, the second of which was an aluminum bodied one that supposedly broke internally and caused many failures. Don't need that one..)
Oil catch can is consistently trapping oil mist vapors now; caught about 8oz in total for the OCI.
I started to do blot tests at about 6k miles to see if the DD package was capped, but all the way to the change (checking every other day), none of the blots ever produced any such indication (halo feature inside blot), and always developed/finished into a tan color. (also, no signs of fuel dilution FWIW) Changed the oil and filter because I figured the filter might have a lot of deposits caught in it, and I don't really need to run the DD package to capacity, as that just creates more of a mess.
Tested new filter for leaks or fitment problems--none found.