Initially diagnosed as a coolant leak due to requirement to constantly add coolant. There was no evidence of a leak. Shortly thereafter the car began experiencing hard starts and illumination of the check engine light (CEL). Code showed number 3 cylinder misfire. Subsequent starts had white smoke in conjunction with rough idle and CEL. Took to my mechanic and he said this is a known issue with this Engine and quoted me 9K for repairs. I did some searching online and found that this issue is VERY well known and Ford is currently in litigation over it.