Nissan 370Z Forum - View Single Post - Continuously getting Moisture In Clutch Fluid.

2011 Nismo#91 · 02-22-2016, 10:17 AM

So I flushed out my clutch fluid twice so far, first after I boiled the fluid at my 2nd track day with the stock fluid, I had already switched out the brake fluid to RBF 660 earlier that year. Switched out out the RBF660 never had a problem with boiling the fluid. A year later I got a brake fluid tester to see if I should replace the brake fluid which was about a year old. I tested the brake fluid and it measured about 2% water content. Since it was the same fluid I decided to test the clutch fluid as well which was only 6 months old, it read >4%! So last year I had the brake and clutch fluid flushed and put both RBF600 in. Last night I got the tester out again and it read 1% on the brake fluid and >4% on the clutch fluid.
Why would so much more water be getting into the clutch fluid system? I know CSC maybe failing but then it would have been failing for over a year and almost 10k miles with track days and dragon runs.

02-22-2016, 10:17 AM	#1 (permalink)
2011 Nismo#91 A True Z Fanatic Join Date: Mar 2011 Location: NJ Posts: 2,402 Drives: slowly Rep Power: 40569	Continuously getting Moisture In Clutch Fluid. So I flushed out my clutch fluid twice so far, first after I boiled the fluid at my 2nd track day with the stock fluid, I had already switched out the brake fluid to RBF 660 earlier that year. Switched out out the RBF660 never had a problem with boiling the fluid. A year later I got a brake fluid tester to see if I should replace the brake fluid which was about a year old. I tested the brake fluid and it measured about 2% water content. Since it was the same fluid I decided to test the clutch fluid as well which was only 6 months old, it read >4%! So last year I had the brake and clutch fluid flushed and put both RBF600 in. Last night I got the tester out again and it read 1% on the brake fluid and >4% on the clutch fluid. Why would so much more water be getting into the clutch fluid system? I know CSC maybe failing but then it would have been failing for over a year and almost 10k miles with track days and dragon runs.