Durango Oils

[av4625]

hi i run 10000 oil in both my 410 diffs i was using old xtm stuff i had from ages ago it run out i ordered some from durango and on the bottle it says 10000cst and i think the xtm was wt the durango oil feels lighter wat is the same as 10k wt in durango oil in my 410 kit it came with 70000cst and 20000cst and i also have 2000wt durango and the 20000cst and 2000wt in durango oils look to be exactly the same?