1997 Buick CenturyCoolant Type & Capacity

OEM spec from the factory service manual for the Custom variant.

Quick Answer

Coolant Type

50/50 mixture of DEX-COOL and clean water (preferably distilled)

Capacity

11.30 QTS.

10.69 L

Variant

Custom

Source: Factory service manual β€” 1997 Buick Century Custom. View full manual section β†’

Frequently Asked Questions

What type of coolant does a 1997 Buick Century take?
The 1997 Buick Century requires 50/50 mixture of DEX-COOL and clean water (preferably distilled). The exact spec may vary slightly by engine variant β€” this page shows the OEM recommendation for the Custom configuration.
How much coolant does a 1997 Buick Century hold?
The 1997 Buick Century cooling system capacity is 11.30 QTS. (10.69 L).
Can I use universal coolant in my 1997 Buick Century?
It is strongly recommended to use coolant that meets the 50/50 mixture of DEX-COOL and clean water (preferably distilled) specification. Universal coolants may not provide the correct corrosion protection for your engine's materials.
What happens if I use the wrong coolant in my 1997 Buick Century?
Using coolant that does not meet the OEM specification can cause corrosion, gasket damage, and overheating. Always verify the correct coolant type before topping off or flushing the system.