Remember that refrigerant itself has very low viscosity. Solutions of oil and refrigerant have a viscosity between that of the oil and that of the refrigerant. As more refrigerant dissolves in the oil, the solution becomes less viscous.
The Element Earth. The earth signs are Taurus, Virgo, and Capricorn. The earth signs are stable and practical, and they are sometimes thought of as stubborn. They are concerned with the mundane details of the world, and what really exists. They can have trouble with non-tangible ideas, however.
This is one of the cardinal points in a horoscope. So the midheaven is about taking action, having ambition and climbing to the top which are a few characteristics of Capricorn. You will have to know the hour of birth in order to get your midheaven zodiac sign. Your midheaven sign can be of any of the 12 zodiacs. Even though this area of the top of the sky is ruled by Capricorn it only means that those are the characteristics that play a big part for that area of life.