I do not see the value of the 40°C (104°F) cSt viscosity data on a product/technical data sheet. The two cSt viscosities that are of any value are at a cold start between 0°C (32°F) and 5°C (41°F), and the extreme at water boiling 100°C (212°F); a third data value at operating temp around 85°C (185°F) could be useful. An engine is at 40°C for a short time while warming up unless you are around the 100°+F hot areas in the summer such as Phoenix, the Middle East, or the desert. The next cold temperature viscosity data that some oil manufacturers provide are CCS or MRV at -35°C/-30°C depending on the oil grade that is ~130°F colder than 40°C cSt. How can we [BITOG] lobby for a change to the standard tests used for a data sheet that will provide more valuable data?