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  Automotive Gear Oils - EP 90


Castrol EP 90 is a mineral based extreme pressure multi-purpose gear oil containing anti-oxidant, anti-corrosion and anti-foam additives to protect against
problems due to oil oxidation, gear tooth corrosion and oil foam. It also contain a special E.P. additive to cope with the conditions of high rubbing pressures.


Castrol EP 90 is primarily recommended for the lubrication of conventional spiral bevel and some hypoid bevel final drive units specifying API GL4 and
operating under moderate service conditions; but it may also be employed to lubricate spur and helical gears, such as used in automotive manual gearboxes,
where the manufacturer specifies the use of an E.P. oil to API GL4.


lExcellent oxidative stability
lGood anti-foam properties
lSuperior anti-wear performance
lImproved transmission cleanliness and resistance to thickening
lLong oil life
lReduced wear


API Service Level GL4
SAE Viscosity Rating 90
Relative Density @ 20º C 0.895
Viscosity @ 40º C, mm²/s 167.2
Viscosity @ 100º C, mm²/s 16.0
Viscosity Index 98
Flash Point (closed) ºC 189
Pour Point ºC -24