Gearbox additives
 

Are gearbox additives any good thanks

Shouldn't need them if the box is in good nick. Change the fluid and all will be well.

Gearbox additives
 

Noticed recently that it’s a bit notchy when going into reverse when cold, wondering if an additive would help

A fluid change should sort it out depending on when it was last done. Worth doing anyway for what is a relatively low cost.

Gearbox additives
 

👍sounds like a plan , I’ll do the diff at the same time

Gearbox additives
 

Another question, is it the same oil for the diff as well 01 wrx

Snake oil.