I am using Havoline. Needle stays at 2nd mark at cold start. After it reaches optimum temp, it hovers around the 3rd mark. During driving it keeps moving (fluctuates) with the RPM but except very hard acceleration and high RPM it does not touch H at all. In fact max it crosses the 2nd bar (teeny bit).
if you are stuck in tarffic and AC is on, when the compressor trips it sometimes drops down (again a teeny bit) from the 3rd bar (just like the picture). Hope it helps. I am still waiting for the update on your "Totka"