Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - Looks like coolant sprayed out of the overflow during motorkhana

Tcoat · 10-26-2015, 10:50 AM

Ya, if it is already at the full line then heating it up could cause it to over flow. The max min on tank is measuring overflow and should not be used to judge how much coolent is in the whole system. Many people like to keep it at max in the mistaken thought that it needs to be there to fill the system but reality is that it is there to take the excess when heat expands the coolent so if at max when cold then it is way too much when hot.

10-26-2015, 10:50 AM	#4
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,841 Thanks: 61,656 Thanked 108,295 Times in 46,456 Posts Mentioned: 2499 Post(s) Tagged: 50 Thread(s)	Ya, if it is already at the full line then heating it up could cause it to over flow. The max min on tank is measuring overflow and should not be used to judge how much coolent is in the whole system. Many people like to keep it at max in the mistaken thought that it needs to be there to fill the system but reality is that it is there to take the excess when heat expands the coolent so if at max when cold then it is way too much when hot. __________________ Racecar spelled backwards is Racecar, because Racecar.