Coolant Temperature
Race Director
Joined: Dec 2007
Posts: 19,574
Likes: 167
From: Frederick, MD
Or if they do have a gauge it just pegs at 210 if it is between 190-230. I know my wife's Yukon Denali is like that. GM's engineers are not worried bout the C6 temp until it gets around 224 or so (when the fans kick in). I have seen that happen a couple times such as driving in 100+ weather in traffic or climbing a hill in the same conditions.
Team Owner
Joined: Dec 2002
Posts: 32,074
Likes: 296
From: San Francisco CA
Team Owner
Joined: Dec 2002
Posts: 32,074
Likes: 296
From: San Francisco CA
I gotta tell ya, I bought an 06 over a year ago. My temp was running between 200 and 210 when I got it. It was about 200 on the highway and about 210 or higher in traffic.
I wanted the oil changed and the radiator flushed and I took it to a stealership of all places. They did a power flush and charged me $129.
The difference was pretty startling. I immediately noticed I was running between 190 and 200. Now, it never gets above 200.
In previous cars, I have always just drained the coolant and replaced it. But for some reason, since it was my first oil change, I took it to the nearest Chevy dealer. I also wanted to learn some of the ins and outs of the car and check the GM repair history on the car and see if there was anything that didn't turn up in Carfax.
I paid for the power flush, which apparently involves more than just draining and refilling and glad I did. It's a noticeable difference.
I posted this earlier and one forum member suggested the power flushing may have dislodged something that was blocking the system somewhat. Not sure what it did, but it works.
Also, I'm not sure what coolant was in there previously.
I wanted the oil changed and the radiator flushed and I took it to a stealership of all places. They did a power flush and charged me $129.
The difference was pretty startling. I immediately noticed I was running between 190 and 200. Now, it never gets above 200.
In previous cars, I have always just drained the coolant and replaced it. But for some reason, since it was my first oil change, I took it to the nearest Chevy dealer. I also wanted to learn some of the ins and outs of the car and check the GM repair history on the car and see if there was anything that didn't turn up in Carfax.
I paid for the power flush, which apparently involves more than just draining and refilling and glad I did. It's a noticeable difference.
I posted this earlier and one forum member suggested the power flushing may have dislodged something that was blocking the system somewhat. Not sure what it did, but it works.
Also, I'm not sure what coolant was in there previously.
Dealership also told me Corvette has a closed system so you can only drain then add. Plastic reservoir is the opening. No opening on radiator like most cars just a petcock release valve. I am using Amsoil anti-freeze.
Le Mans Master
Joined: Aug 2005
Posts: 6,779
Likes: 2
From: NCM Lifetime Member
St. Jude Donor '12-'13-'14-'15-'16-'17-'18-‘19-'20
My only concern was yesterday while driving the HUD coolant temp bar was almost to the top. I called up the digital display and it said 205 degrees. I didn't know if that was high but after these posts here I am now satisfied it's normal. But I would like it to be lower.
As the posts on this thread verify, there is no reason to want the temps in your situations any different than they are.
Drive it & enjoy it.
