View Single Post
#3: 11-06-2012, 11:26 AM
 
 GTEASER
GTEASER's Avatar
Title: Teaser of the G
Rank: Donating Member
Location: SF Bay Area, CA
Car: 2012 Legacy GT and 1992 Legacy SS
Posts: 10,991
iTrader: (12)
Send a private message to GTEASER Find all posts by GTEASER Reply With Quote
The reservior is an overflow/recovery tank. If there is any in there, your radiator will be full. Coolant expands and contracts based on temperature. Note that the two are connected near the radiator cap at the top of the radiator. As long as the tank is full, if the radiator is low, it will get sucked from the tank to refill the radiator.....automatically......by magic.