Whats the best gearbox oil to use

Greg D

New member
Well lads i have a 99 gt series impreza turbo 2000 im puttin a new box in it at the min what should i use 75w90 or 80w 90 any info appreciated thanks
 
75w90 semi synthetic is what Subaru recommend for the box and rear diff ,so any decent brand of that grade will be perfect
 
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