Brake Fluid Change
Race Director
Joined: Aug 2016
Posts: 12,866
Likes: 10,274
From: Garden Valley CA
When my cars are at the scheduled interval for a brake fluid change I do a visual inspection for discoloration and check for moisture. I replace the fluid if it fails either check. I then check it periodically if I didn't replace it. But I change the fluid on schedule if I'm still under warranty. And I don't track my cars.
Race Director
Joined: Feb 2001
Posts: 11,382
Likes: 2,112
From: Grapevine Tx
2018 C3 of Year Finalist
2016 C3 of the Year Finalist
Also, isn't the reservoir cap vented? That means the ambient humidity is also in the air space above the fluid and can be absorbed.
Race Director
Joined: Aug 2016
Posts: 12,866
Likes: 10,274
From: Garden Valley CA
The C8 front lift initially had a diaphragm in the cap but it would get sucked in because it couldn't handle the displacement. GM revised the design to eliminate the diaphragm but I don't remember if they vented it or sealed it.
Melting Slicks
Joined: Jan 2006
Posts: 2,326
Likes: 1,885
From: Oregon
With the Ranger method you aren't bleeding the system, just exchanging fluid. I have done it many times on clutches. You suck out most of dirty fluid from resivour add fresh, pump the clutch a number of times, repeat, about 5 times until fluid is clean. I typically use a quart of brake fluid. On my C7 clutch I would do this every couple years if feeling the clutch hanging up a little. For what dealers charge for these simple procedures, it may be worth trying...
Every cycle of the clutch pedal moves a lot more fluid that the brakes.
