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When is the best timing to change oil for gear box and LSD?

5.4K views 7 replies 7 participants last post by  latapx  
#1 ·
As the title of this post, just want to know different opinions on this.
What I heard is that gear shifting on manual model is more smooth and better if change the gear box oil as early as possible. Is that a traditional commercial trick from dealer or there is knowledge behind it?
Please share your opinion.