Cadillac CT4 V Engine Oil Specs

The Cadillac CT4 V was produced from 2020 to 2026. This model typically uses 5W-30 full synthetic engine oil — a specification common to most Cadillac CT4-series vehicles.

Selecting the correct oil viscosity for your Cadillac CT4 V is essential. Using a grade that is too thin reduces protection at operating temperature, while too thick an oil impairs cold-start flow and reduces fuel economy. Always match the exact grade shown for your specific model year.

The recommended oil change interval for the Cadillac CT4 V is every 10,000 miles or 12 months. Under severe driving conditions — track use, towing, or frequent cold starts — shorten this interval by 25–30%.

When servicing your Cadillac CT4 V, always replace the oil filter at every oil change. Using a quality filter — such as Fram, Mobil 1, or OEM equivalent filters — ensures clean oil circulation through the engine block.

Oil change costs for the Cadillac CT4 V at a US dealership or local service center typically range from $60 to $110 for a standard synthetic blend or full synthetic service. DIY oil changes cost approximately $30–$65 in parts (oil + filter) and take about 30 minutes with the right tools.

Always consult your vehicle's owner's manual to confirm the exact specification for your specific trim and engine variant, as some Cadillac CT4 V configurations may have different requirements.