I wouldnt change anyways, works great. I had motul before, it was too thin for my liking. But i guess all oil should do its job, if you dont miss.

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STi Version VI

Redline is fine to use. It just doesn't like getting contaminated with the old oil. Makes it turn all gloopy and useless.

If you do use Redline Shockproof let the old oil drain out for as long as you possibly can. Id personally leave it overnight as a bare minimum when switching to Redline from another oil.

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RS Liberty - Because WRX's are only good for parts...