My LEAF tech also said that that Nissan has a pretty consistent frequent brake fluid change schedule across their lineup. He used the brake fluid volt meter tool and my fluid registered at the highest end of the meter but when I tested it using the FASCAR copper brake fluid test strip it didn't register any copper. It will be interesting to see how long it takes before it starts registering copper. It starts at 10 ppm and it is recommended to change it when it gets to 200 ppm.