Motul Gear Competition 75W140 is 100% Ester synthetic oil. The ultimate in performance for use in competition. Designed for motorsport differentials (either mechanical, Torsen, or with/without wet clutches) & dog engagement manual transmissions (sequential or h-pattern), whether they are helical or straight cut, under extreme high load/high speed conditions.
Motul recommends installing or upgrading oil coolers to ensure stable operating oil temperatures at all times. Failing to do so may result in mechanical failure.
Gear Competition is a competition spec oil and is not designed for driver/passenger comfort, but the absolute maximum performance of your LSD.
Note: If your LSD has been filled with OEM or general service LSD oil for an extended period of time and you upgrade to Gear Competition, you may find the LSD will now chatter or slip. Unfortunately this is a sign of worn clutch discs (or hot spots) caused by repeated soft engagement from the previous LSD oil. It is possible the LSD had stopped working as intended with the previous oil. Either replace the LSD clutch discs or return to the general service LSD oil to stop any chatter.
High quality transmission oil flush additives are encouraged, however do not use leave-in additives ('performance improvers') with any Motul transmission oil products.
Standards & Approvals: ABOVE EXISTING STANDARDS
Reference: Mugen LeMans 24HR, Hewland, X-Trac, Japan GT, Pfitzner Performance Gearbox (PPG), Holinger Engineering, many more