Is anyone running a 4.7L???

i must be lucky 200K, cheap oil changed every 5 to 7K, never touched the trans!! i do about 75% highway. and i have been blocking the grill and when very cold blocking the lower air dam, this has basically stopped the white foamy condensation. I bet a lot of the 4.7's with oil problems as mentioned are in cool to cold climates coupled with short trips.