Both Maxlife Synthetics (5w30 and 10w30) meet BMW Longlife 89 spec as does Synpower 5w40. The Maxlife Synthetics are 11.5 cSt at 100C, about 1 cSt thicker than the typical 30 weight. The Synpower 5w40 is 13.9 cSt. I see both listed as SL with SL additive levels per Maxlife 9/04 product data update and Synpower 6/04 product data update. Cold specs look good as does flash point. See Valvoline Technology for data sheets. The Maxlife has killer gobs of calcium (3870 ppm) for cleaning, antiwear, and TBN among other things.