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  1. Front diff fluid change?

    Focus RS Maintenance
    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...
  2. Mystery Diff Fluid. Amazeballs. RDU over heating with slicks... any solutions???

    Focus RS Racing
    So, I broke the front axle on my GTR and my MPSS are toast on the RS. I bought some Ferrari Challenge Pirelli slicks for the RS tomorrow, because I have issues... I am obviously worried I am going to cook the rear differential faster than normal. I believe I have heard of some fluid options...