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  1. Focus RS TroubleShooting
    Hello all, I purchased my RS in May and changed the oil at 1,800 and 4,900 km. I've been using the 5W-50 Motocraft oil supplied by my local ford dealer, and do all the work myself. I have the oil analysed for wear metals, contaminants, and it's physical properties. The 1,800 km test came back...