Cadillac CTS Quiz
Vehicle Care

Engine Coolant

In this manual: Vehicle Care
Introduction — 6In Brief — 59Keys, Doors, and Windows — 64Seats and Restraints — 66Storage — 15Instruments and Controls — 169Lighting — 22Infotainment System — 95Climate Controls — 10Driving and Operating — 120Vehicle Care — 170Technical Data — 7Customer Information — 48OnStar — 35
~1min read

The cooling system in the vehicle for all engines and the intercooler is filled with DEX-COOL®. This coolant is designed to remain in the vehicle for 5 years or 240 000 km (150,000 mi), whichever occurs first.

The following explains the cooling system and how to check and add coolant when it is low. If there is a problem with engine overheating, see Engine Overheating.

Test yourself

A quick Cadillac CTS quiz: every answer comes with an explanation and a link to the manual page.