This weekend I filled all the fluids in my car (FE with an expansion tank), but I can't tell if the coolant level is full. I put in 2 gallons of distilled water and 2 gallons of
antifreeze, but when I look in the expansion tank, it looks like there is just about 1/8 or 1/16 of an inch of coolant covering the bottom of the expansion tank. How high should the coolant be in the expansions tank? (I didn't see any obvious water level markings on the tank).
Thanks for your help.