We were 90 miles from home this afternoon when we noticed coolant on the ground. Mushroom gasket had failed and drained fluid from reservoir as it was added. I bought 4 gal of pre-mixed coolant and headed for home. I turned off the A/C, only drove 60 mph and was as gentle on the accelerator as possible. The temp needle didn't get above mid-range. I stopped at 10 miles and opened the hood but the engine seemed ok. There wasn't a load of heat radiating from it, so I continued the rest of the way home with an eye on the temp gauge. Opened the hood when I got home and added 1 gallon of water to make sure the system had as much fluid as possible (most of it just went out the gasket opening). I can't believe I made it home without the temp gauge rising into the hot range. The thought did occur to me that maybe there wasn't any fluid around the temp gauge sensor but I figured that even then the temp would get high enough to raise the gauge or at least make it fluctuate. Is there anything I can check to see if I did any damage to the engine or turbo?
Marlin