I recently had a 2016 MB E350 Sedan come in for its second "B" service at 41K. MB now requires a brake fluid replacement at every "B" service, which occurs every 2 years or 20K miles. This vehicle specs "DOT4+" brake fluid, which some folks refer to as "Super DOT4." My understanding of "DOT4+" fluid is that it is supposed to carry a higher boiling point than regular DOT 4. I believe this is the only intended difference between "DOT4+" and regular DOT4 fluid. Pentosin offers a Super DOT4 fluid that carries a dry boiling point of 265C (509F) and a wet boiling point of 165C (329F). My supplier sells Textar DOT4 LV fluid which carries a dry boiling point of 266C (511.8F) and a wet boiling point of 171C (339.8F). ATE also mentions in their marketing literature that ATE SL.6 can replace "Super DOT4" and their SL.6 fluid has a dry boiling point of 265C (509F) and a wet boiling point of 175C (347F). So, my questions are as follows: 1) It appears that DOT4LV fluids have a superior dry/wet boiling point compared to a Super DOT4 fluid. What is the advantage of using Super DOT4/DOT4+ over DOT4LV? 2) Is there a published spec for minimum dry/wet boiling on DOT4+/Super DOT4 fluids?