Blending Experiment Special on 1995 Subie Imp 1.8L (mfg rec's 10w30).
I finally changed out the old winter oil that was run from summer through winter until yesterday. New stuff is (or will be) about half Kendall and half Delo. Here's what went in:
1.5 qt 5w20 Full Synth Kendall
0.6+ qt 10w30 HM Blend Kendall
1.2 qt 15w40 Delo
and a few ounces (1/2 bottle) of Lubro Moly MoS2 add'v.
1 qt 15w40 Delo to be added in April, in half qt increments as weather warms up (I'm running almost a quart low right now, on my 4.3 qt oil capacity).
I've driven it for 2 days so far and it seems to be performing well.