engine coolant

Hello, Last year I had my cooling system flushed and filled with this product, which I've attached to this post. I noticed earlier this week that my overflow reservoir is at or below the Low mark, so I want to fill the reservoir back up and make sure that I am adding the same coolant that is in...

I have a 97 tj w/ a 2.5. The temp gauge fluctuates like crazy, so far I have replaced the radiator, temp sensor ,new plug, two different thermostats, No change, so I just unplugged the sensor last night and drove it to work, and even unplugged it still fluctuates, any ideas, thanks

Unexplained coolant loss, no apparent leaks. 2001 TJ 181k miles 0331 head Overheated recently, didn't boil over but lost a lot of coolant. Culprit was upper radiator hose that split at the bend near the A/C lines and valve cover. After it cooled, I discovered the split when I removed the hose...

My 2001 TJ suddenly started overheating (temp gauge shot up) to 260+ (red zone). Checked the engine coolant reservoir and completely empty. Refilled and made it home OK (short distance, few miles only). After been parked for a day (and not running the engine) the reservoir is below where I...