Have you ever needed a 50w shock fluid and all you have laying around is a 60w and a 40w? You would think that a 50/50 mixture of the two fluids would give you a 50w fluid, you may be surprised to learn that this is not correct. So, how do you get to the desired 50w fluid? The crew over at Script Asylum have Silicone Oil Mixture Calculator to help you out.
The calculator is very straight forward. Just input the two different fluids you have on hand and the fluid weight you want to obtain and the calculator with tell you what percentage of each fluid you need to get your desired result.
You can check it out at Silicone Oil Mixture Calculator