I have a 6l turbo diesel ford it has no power when cold and skips.anyone no what is wrong

. Check the glow plugs:

https://www.askmehelpdesk.com/cars-t...ml#post1415281

. Check your fuel:

https://www.askmehelpdesk.com/cars-t...ml#post1985158

I recommend that your only use full-synthetic diesel HDEO in your truck, especially since it has a turbo. Diesels simply perform much better with synthetics. Turbos are a disaster waiting to happen, without synthetics. Synthetics also help with starting and performance in cold weather.