I have a 2018 RS with the factory (Quaife) front diff. I am approaching 500 track miles and plan to change the fluid in the rear drive unit soon per the manual. I have found nothing written in the manual or online about the front differential being on the same interval. My dealer is no help. Anybody hear anything? I was going to contact Quaife next during the work week.
But the PTU uses different lube is worth changing, especially if using on the track, by around 5K miles. There's a lube thread with a list of all the lubes & capacities you need to put the highest quality stuff everywhere.
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