Spec-R Gear Diff silicone oils
Spec-R have released a range of high quality, temperature resistant, Gear Diff silicone oils. Easily fine tune the Spec-R, or other brand, Gear diff in your EP touring car with this range, which comes in 800, 1000, 1200, 1300, 2000, 3000, 100000 & 300000 weights.
Source: Spec-R [spec-r.com]