I got the coolant flushed in my 2016 Challenger 3.6L at 90,500miles in September of last year and I’ve driven 34K miles since then. I noticed over the months the coolant in the reservoir keeps getting lower. It’s now sitting just above the Min line when cold. Is that a normal amount of coolant loss in 10 months and 34K miles? I live in Florida where is always hot and humid. The car doesn’t overheat and there are no external leaks. I have NOT had to add more coolant at all in this amount of time but I will be topping it off with distilled water.