Just under three years ago, we reported that 301 redirects don’t pass full PageRank and that you should try to link through a normal link versus using 301 redirects.
The truth is, a 301 redirect and a link pass the same amount of PageRank. There is no more dilution of PageRank with a 301 redirect when compared to using a normal link.
Matt Cutt said in his video : The amount of PageRank that dissipates through a 301 is currently identical to the amount of PageRank that dissipates through a link.
So the myth that you should not use 301 redirects because it will dissipate more PageRank than using a normal link is not valid.
Source url : http://searchengineland.com/google-pagerank-dilution-through-a-301-redirect-is-a-myth-149656