Ford F-350 Blue Smoke

I Have A 6.0l Diesel 05 Ford 4x4 F350. When I First Start It In The Morning Etc, When It's Cold , It Blows A Lot Of Blue Smoke For About The...

We Got A 99 Ford F350 Diesel Dually It Has A 7.3 Motor .we Had To Pull Start It About 2 Foot To Get It To Run So We Got New Batterys For It...