How often should the brake fluid be replaced in a Cadillac CT6?

[LaAndrew]

Cadillac CT6 brake fluid should be replaced every 2 years or 40,000 kilometers. The functions of brake fluid are: 1. Brake fluid has a very low freezing point, ensuring good fluidity in low-temperature conditions; 2. Brake fluid has an extremely high boiling point, preventing vapor lock in high-temperature conditions; 3. It does not cause corrosion to metal and rubber. The dimensions of the Cadillac CT6 are 5223 mm in length, 1879 mm in width, and 1492 mm in height, with a wheelbase of 3109 mm. The Cadillac CT6 is equipped with a 2.0T inline 4-cylinder turbocharged engine, delivering a maximum horsepower of 237 HP and a maximum power of 174 kW, paired with a 10-speed automatic transmission.

[DiPreston]

Here's how I understand brake fluid replacement: Over the years of driving, I've found that brake fluid is most afraid of absorbing moisture and deteriorating. For luxury cars like the Cadillac CT6 with electronic brakes, manufacturers generally recommend changing it every two years or 30,000 kilometers. If you drive aggressively, frequently brake hard, or often drive on mountain roads, this interval should be shortened. During my last maintenance visit, the mechanic showed me a testing pen—if the moisture content exceeds 3%, it must be replaced immediately. Otherwise, you might feel a soft brake pedal, and in winter, it could freeze and block the pipes. Remember, regularly changing this stuff is much cheaper than repairing the brake system, and it can be a lifesaver in critical moments.

[ORose]

Attention CT6 owners: Don't just rely on mileage for brake fluid replacement. Last time I tested old fluid - moisture-contaminated brake fluid's boiling point plummets, risking vapor lock during continuous downhill braking. Though the manual suggests 2 years/30,000km, those in humid northern regions or frequent rainy-season drivers should check moisture content annually. Repair shops use test pens for 30-second results - replace if exceeding 3%. Pro tip: Ensure complete air bleeding during replacement. Some shops cut corners with partial fluid changes - this isn't an area to economize.

[VanAnastasia]

Just dealt with the spongy brake issue: The CT6 uses DOT4 brake fluid from the factory, which absorbs moisture over time and corrodes metal components. The dealership recommends changing it every two years, but based on my experience, city commuter cars can go up to three years. Here's a tip—observe the color of the fluid reservoir. Fresh fluid is honey-like and translucent, while deteriorated fluid turns dark and cloudy. When replacing, ensure all old fluid is completely drained. Among the four replacement methods, pressure bleeding is recommended—though more expensive, it ensures thorough purging. After replacement, test drive the car and make sure ABS engages during hard braking to confirm proper performance.