XRAY's smart innovation is clearly evident on the whole concept of the complete oil line. XRAY oils cover the complete range from Ultra Thin (100cSt)... Thin (1000 cSt)... Medium (5000cSt)... Thick (10.000cST)... up to Extra Thick (100.000cSt), with numerous stages in between. With thinner oils suitable for shocks (up to Medium), and thicker oils suitable for differentials, you will be able to find the correct viscosity you need for your application. Each category of oils is individually colour-coded to allow you to instantly recognize the type of viscosity, and the large easily-visible oil viscosity value is written on the front and side of each bottle. The other side of the square bottle features a smart XRAY oil-scale so you easily identify where the particular viscosity is on the scale. For racers storing oils in the box it has never been easier to find the correct oil; the top of each cap has a small dot with the printed viscosity value, so you can easily select the right one.