HIGHTEC TOPGEAR SAE 75W-90 HC-LS is a high–performance gearbox oil produced using HC synthetic oils for manual gearboxes and axle gears with LS differentials (Limited Slip). High temperature and oxidation stability due to selected HC synthetic oils and special additives. Extremely stable to shear stress ‘stay-in-grade’. The favourable cold viscosity ensures improved shifting ability fast Lubrication and low ‘cold wear’ . Warning: These oils are unsuitable for use in some engines. Consult owner’s manual or handbook if in doubt.