Terrain LS 80W-90 is a mineral oil based gear oil that has been formulated with a high level of extreme pressure (EP) additives and friction modifiers to protect the critical mechanisms of limited slip differentials used in heavy off-highway and agricultural equipment. In addition to high load carrying capability, Terrain LS 80W-90 will protect against rust and corrosion and has a low foaming tendency. Shock loading occurs when one of the driven wheels looses traction and the differential locks redistributing the drive equally. Standard API GL5 gear oils are unable to cope with this extreme condition and therefore it necessary to use the correct limited slip differential oil to promote long component life.