Cadillacs require high-octane fuel to maximize engine performance and prolong their life span. You risk engine knocking and poor fuel economy if you don’t use premium gasoline. Using regular gas in your Cadillac’s high-compression engine can also lead to expensive repairs. The lower fuel quality does your vehicle more harm than good. Learn more about the difference between regular and premium gas and why using the right one matters for your Cadillac.
Cadillac Engines and Fuel Types
Cadillac is a luxury vehicle brand operating under GM. Its sedans and SUVs feature turbocharged, V-6, and V-8 engines that perform best with high-octane fuel.
Here’s a look at the engines available in the latest Cadillacs and their performance specs when fueled with premium gas:
- The 6.2-liter supercharged V-8 engine can output up to 682 horsepower and 653 lb-ft of torque in the Cadillac Escalade V-Series.
- The 2.0-liter four-cylinder turbo engine delivers up to 235 horsepower and 258 lb-ft of torque on Cadillac’s XT6, XT5, and XT4 SUVs.
- The 3.6-liter V-6 engine available in the Cadillac XT6 and XT5 produces 310 horsepower and 271 lb-ft of torque.
- The 2.7-liter dual-volute turbocharged engine can deliver up to 325 horsepower and 380 lb-ft of torque in the Cadillac CT4 V-Series sedans.
- The 3.6-liter twin-turbocharged V-6 engine in the CT4 Blackwing outputs 472 horsepower and 445 lb-ft of torque.
- The 2.0-liter twin-scroll turbocharged inline four-cylinder engine generates up to 237 horsepower and 258 lb-ft of torque in Cadillac CT5 and CT4 models.
- The 3.0-liter twin-turbocharged V-6 available with CT5 sedans can produce up to 360 horsepower and 405 lb-ft of torque.
- The 6.2-liter hand-built supercharged V-8 engine in the Cadillac CT5 Blackwing produces 668 horsepower and 652 lb-ft of torque.
Premium vs. Regular Gas: What’s the Difference?
Fuel type can significantly impact your vehicle’s performance. Gas has an octane rating that indicates its stability and resistance to premature ignition, which “knocks” the engine. Engine knocking happens when the temperature and pressure are too high inside the combustion chamber. As a result, the unburned fuel ignites, causing a knocking sound.
Regular gas has the lowest octane rating at 87, which is incompatible with Cadillac’s high-compression engines. Premium fuel has a higher octane rating between 91 and 94, which is ideal for withstanding immense pressure due to its increased stability. Using the correct gas type for your Cadillac’s engine prevents knocking and improves performance and fuel efficiency.
Cadillac Models That Require Premium Fuel
Since Cadillac is a luxury brand, most models come standard with an exceptional turbocharged or high-compression engine. These engines require premium gasoline for optimal performance and efficiency. Using low-octane fuel reduces engine performance and may cause damage over time.
Recent Cadillac models for which premium fuel is required or recommended include:
- Escalade
- Escalade-V
- XT6
- XT5
- XT4
- CT5
- CT5-V
- CT5-V Blackwing
- CT4
- CT4-V
- CT4-V Blackwing
What Happens if You Use Regular Gas in a Cadillac That Requires Premium?
Regular gas in a high-compression engine can prematurely ignite because it can’t withstand immense pressure. If you use low-octane fuel for your Cadillac, you’ll experience engine knocking. Repeated knocking can damage your engine over time, reducing its horsepower and torque production. Another drawback of using regular gas in a Cadillac is reduced fuel economy.
High-quality premium gas is also better for your motor’s longevity due to its extra engine-cleaning benefits that reduce buildup. If you stick to low-quality, regular gas, it can cause premature wear on your engine. Premature wear not only translates to expensive repair but can also reduce your Cadillac’s resale value. Optimize its performance and extend its life span by fueling up with premium gas.
Cadillac’s Fuel Recommendations
Cadillac recommends using premium gasoline for its turbocharged V-6 and V-8 engines. Check your owner’s manual for the gas type required for your specific model. Some Cadillacs may have a label near the gas cap citing the recommended fuel grade you should use. Following the manufacturer’s guidelines ensures your Cadillac’s longevity and peak performance.
Cost vs. Benefit of Using Premium Gas
Premium gasoline is pricier due to its higher octane rating and increased production costs. However, the long-term advantages of using high-octane fuel surpass the additional expense. A hallmark of owning a luxurious Cadillac is a dynamic driving experience. With the right gasoline, you’ll get a more enjoyable ride, and your engine will produce the maximum horsepower and torque needed for seamless acceleration. The improved fuel quality can also lead to lower maintenance costs.
Get Your Next Cadillac Service at Turan Foley Cadillac
Premium gas in your Cadillac gets you optimal performance and fuel economy and extends engine longevity. Check your owner’s manual for manufacturer recommendations for fuel and routine services. Visit us at Turan Foley Cadillac in Gulfport, Mississippi, if you have any questions about keeping your luxury car in top shape. You can also schedule an auto service appointment online.
A Black Cadillac Car Parked on the Street by Collin Nederhood is licensed with Pexels License
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