As far a replacement fluid goes the manual in my 2011 says Dot 3 (PM-1-c, WSS-M6C62-a) but the 2014 manual says Dot 4 LV (PM-20, WSS-M6C65-A2) With the new Sport brake upgrade what fluid should I use? I know Dot 4 has higher boiling point but can absorb moisture faster. Why did Ford switch to...