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...