Originally Posted by JARblue

Let's be clear, the coolant is not labeled lifelong. Nissan is not suggesting that you don't ever need to change your coolant. The term they use is Long Life. There is a difference. Typically, coolants are good for about 150K miles or 5 years.

The Nissan green coolant is concentrate (must add distilled water) and rated for 105K miles or 7 years. The Nissan blue coolant is pre-diluted (50/50 mix) and rated for 135K miles or 10 years.