TYPE 2 COOLANT New and Improved

before i was using the type 1 fluid i believe. I was having problems with my coolant overflowing to the resovoir tank. Well few weeks ago i changed my coolant to type 2, it's a dark blueish color instead of the green and it's hard to tell if its dirty. this coolant is believe to last upto 60k miles instead of the 30k. I have not had any problems thus so far *knock on wood* The type II coolant bottle was also a grey color instead of the black one shown. The honda dealer where i got it at also said they didn't make any 100% coolant anymore. They only offer the premixed 50/50. I don't know if this is true or not, just what i was told.