Keep tank over 1/2 full in winter?

I heard you should keep your tank over 1/2 full in winter to

1. Cut down on condensation

2. Fuel pump is cooled in gasoline and low tank tends to over heat the pump.

Duplicate post
http://community.cartalk.com/posts/list/2217402.page;jsessionid=8A10E99ECB42D54C6E4317850C16F57B