Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - What state should the car be in when reading the overflow reservoir?

ghostzfh · 10-23-2017, 08:57 PM

When the car is off and cold, the overflow reservoir shows a lower reading versus when the car is on and warmed up.

This is confusing because when the car is cold, it can be said that coolant needs replenishing, but after the car is warmed up, it can be said that it does not need replenishing, so which one is right?

What state should the car be in when reading of the overflow reservoir, to make sure it is at the optimum level?

10-23-2017, 08:57 PM	#1
ghostzfh Member Join Date: May 2016 Drives: 2016 Scion FRS Halo Location: Mid-Atlantic Posts: 77 Thanks: 42 Thanked 25 Times in 20 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	What state should the car be in when reading the overflow reservoir? When the car is off and cold, the overflow reservoir shows a lower reading versus when the car is on and warmed up. This is confusing because when the car is cold, it can be said that coolant needs replenishing, but after the car is warmed up, it can be said that it does not need replenishing, so which one is right? What state should the car be in when reading of the overflow reservoir, to make sure it is at the optimum level?