shleevo

My manual on 2011 GS says flush the Hydraulic fluid once every 2 years. Went to Chev dealer and they told me to come back at 80,000km, not required. Anyone else have any experience or opinion on this? He said if it isn't leaking there is no need to replace it.

Rocketmanwpb

There are several posts concerning changing the fluid. You can easily do it yourself, search for, "The Ranger Method".

R&L's C6

Here you go, fast and easy to do it yourself. I do mine at least once a year.

WA 2 FST

^^^This. I've done this in my C5Z consistently for many years and have never had any issues, and I don't have to take it to a dealer.

jsucraig

2013 Grand Sport Coupe 3LT with MZ6
I change mine frequently. The first time was at 10,000 miles, about 14 months, it was black and took almost a whole bottle of Synthetic DOT4. Then again at 12,000 about 3 months later it dark brown and took a lot less. The last time I changed mine was about three weeks ago at 15,000 and it was brown but only took about 4 ounces.

I drive a lot of curves and use my clutch a lot.

It's good preventative maintenance.

Edit: I use the Ranger Method

sebring

My opinion:
Normal driving - 2 years
Spirited driving - 1 year
Autocross - 6 months
Track - before each track weekend
The Ranger Method is easy and the way to go

jovette

Your dealer / service manager is wrong. As others have said, change it at least every two years. I change mine at least annually. A friend of mine just paid for a new master and slave cylinder on his 13,000 mile '07, which had never been changed....lots of $!! Clutch pedal stuck to the floor, and wouldn't come back, even after changing fluid..... don't listen to your dealer!

shleevo

Thanks for all the feedback and tips. I guess I better get mine changed asap. I have 15,000km on it now. not sure why the head mechanic at the chev dealer is telling me something else. I may have to find a new service dpt.

shleevo

doesn`t look too hard...I`ll give a shot.

chevyvette1

I just did mine today using Rangers Method. It's very easy. Just be sure to put the cap on when you go to pump the clutch inside the car..

grady

Change your fluid at least every two years. I just had the dreaded clutch to the floor syndrome. Blew the master cylinder just this past Wednesday. Had 10006 miles at the time and at 39 months. Dealer said the fluid was pretty dirty. Cost to change fluid at the dealer is less than $150 so even paying full price is not that much.

George's_Vette

And when performing the Ranger Method always cover the driver's side fender and painted components around the clutch fluid reservoir as clutch/brake fluid is great paint stripper.

-G

R&L's C6

As others have mentioned, just make sure to put the cap back on the reservoir each time you pump the clutch and be careful not to get any brake fluid on any painted parts.

COCO RICK

I do the Ranger Method every couple of months to keep the fluid clear and clean. Also, once opened, the fluid doesn't last that long, so you may as well put it in the car.

cwa255

Bull Sh..t i replace mine every two weeks with a oral syringe suck out old and add new right from reservoir. I can tell a difference everytime I change it shifts way better with new fluid

shleevo

I just popped the cover off to have a look at how bad it is....it looks like motor oil. Black and gunk build up on the cover. Now I'm afraid to bring it back to this dealership. They are obviously clueless.

R&L's C6

Just got back from wally world to pick up some dot 4, they were out......

2k Cobra

When I had my 07 Z, I used the Ranger method when the fluid got dark. Never had any clutch problems...

ProfessorDeath

Ranger method should be rephrased as "the method all racers have used for decades." It works, and takes 15 minutes.

ZR1Cat

Good point! Long before there were hydraulic clutches (i.e. my 1967 vette), I was doing this with my power steering reservoir ...and brake reservoir on various vehicles. This method is by far the quickest and easiest method for maintaining clean fluid, albeit not the most complete method for having clean fluid.