Castrol B373 Limited Slip Differential Oil LS90 Interior_Starter Buttons This has been achieved by

This has been achieved by combining a special Alcon developed iron alloy disc with an aerospace specification alloy bell

meaning various methods have been tried including poor quality seals which are too stiff

Used the world over

Oil control is a problem which can effect the Subaru's "Flat Four Boxer" engine design more than most due to its high crank case pressure and horizontal engine design

Genuine Subaru oxygen/lambda sensor

Castrol B373 Limited Slip Differential Oil LS90 Interior_Starter Buttons This has been achieved byCastrol B373 is a 90w mineral based extreme pressure gear oil which combines limited slip performance with excellent load carrying ability. It is particularly suitable for use in clutch plate type limited slip differentials fitted to Race or Rally competition vehicles. Ideal for competition vehicles with plate type LSDs Maximises LSD performance Provides high levels of protection even in harsh conditions Specifications: API GL 6+ Supplied in 1 litre