The Stratus has M1 5W-30 EP in the sump. It seems to run great, with less engine clatter during very cold startups. I like it. When you say the basestocks are beefed up, does that mean some Group V?
Maybe the M1 EP is formulated similar to the 'brews' some have created-4qts M1 + 1qt Redline. Maybe the UOA's will resemble!