yes
Coolant for the 98 Deville is added into the coolant overflow bottle. The side of the bottle should have low and high coolant markings.
The overflow bottle may overflow if: 1. The car is overheating - this means after the coolant in the radiator gets heated up and expands it flows to the reserve bottle but the radiator doesn't cool down to suck back the coolant from the overflow bottle, but just keeps on sending coolant to the bottle. 2. You may have put excess coolant in the bottle - hence heated coolant from the radiator didn't get enough space.
no antifreese
Coolant is added to the overflow bottle instead of the radiator. The overflow bottle will allow fluid to fill over into the radiator.
The engine coolant reservoir or the overflow bottle.
It should be filled to the "Full" mark on the side of the bottle.
Radiator Coolant level in the overflow bottle is low. Fill the overflow bottle with coolant. If you have coolant in the bottle, the switch is stuck. Remove the whole overflow bottle and clean with some CLR (calcium, lime, rust) remover.
Overflow Bottle.
Look on the side of the coolant overflow bottle. There should be a low mark for the coolant for a cool engine, and one for a hot engine.
On the coolant overflow bottle
In the radiator and the overflow bottle.
by adding more gas I'm weak on Fords, but radiators are filled either at the radiator or the overflow bottle. The overflow bottle will be marked coolant only.