Like most folks here, I'm trying to strike a balance between cost & protection. I'm looking for something that will protect for 10,000 miles/1 yr in a 2.0L 4 cyl N/A engine with a 4 qt sump. I'm confident I can go this distance with a "premium" Group IV full syn, but want to explore other options that cost less & won't leave me "penny-wise & pound-foolish." So, I've been thinking about using 50% Group IV PCMO & 50% Group II HDMO. Then I wondered if a decent Group III HDMO would be better or worse than my imagined blend? Then I spent 1/2 hour staring at meaningless marketing blurbs on the backs of jumbo jugs of oil, trying to "decode" their "real" meanings ... Can anyone help me with my self-imposed dilemma?