What grade of gasoline should a Cadillac SRX use?

[McSpencer]

Cadillac SRX can use 97-octane gasoline, but it is recommended to follow the fuel grade specified in the user manual. 97-octane gasoline is suitable for gasoline-powered vehicles with an engine compression ratio between 10 and 11.5. Do not use gasoline arbitrarily to avoid engine damage and ensure normal engine operation. The Cadillac SRX is a mid-size SUV with body dimensions of 4851mm in length, 1910mm in width, and 1663mm in height, and a wheelbase of 2807mm. The Cadillac SRX is equipped with three types of engines: a 3.0-liter naturally aspirated engine, a 3.6-liter naturally aspirated engine, and a 4.6-liter naturally aspirated engine.

[GabrielleRose]

I've been driving a Cadillac SRX for several years and have gotten used to filling it with 95-octane gasoline because the car has a high-performance engine, and the manual recommends using 95 or 97-octane fuel. Once, I tried to save money by using 92-octane, but the car felt sluggish, lacked power during acceleration, and even experienced slight engine vibrations, which really scared me. I quickly switched back to 95-octane afterward. A mechanic friend told me that using lower-grade fuel in luxury cars like this can easily cause knocking—where uneven fuel combustion damages the engine—and over time, the repair costs would be even higher. So now, I always go straight for 95-octane at the pump. Although it's a bit more expensive, it's a worthwhile investment for my car's longevity and driving safety. Occasionally, on long trips, I take advantage of gas station promotions to save a little money.

[IsabelaDella]

I believe choosing the right gasoline grade is quite important for environmental protection. When driving my Cadillac SRX, I insist on using 95-octane gasoline, which ensures higher engine combustion efficiency and cleaner exhaust emissions, avoiding the increased harmful pollutants produced by using 90-octane fuel. I remember during a discussion on car maintenance, an expert mentioned that lower-octane gasoline can lead to incomplete fuel combustion, wasting energy and polluting the air. As an ordinary car owner, I prioritize sustainability—using 95-octane fuel makes the car run smoother, actually reduces fuel consumption, and in the long run, decreases my carbon footprint. I recommend everyone develop this habit, along with regular maintenance and checking the fuel system, to protect the environment while saving both hassle and money.

[LeviFitz]

As a novice driver who just bought a Cadillac SRX, I asked the same question. The customer service said 95-octane fuel is sufficient. Simply put: check the label inside the fuel filler door or refer to the owner’s manual—both specify the recommendation for 95-octane gasoline. Don’t experiment with 90 or 92-octane, as the car may develop strange noises or reduced power. I learned this the hard way early on; once, after filling up incorrectly, the engine shook violently when accelerating, forcing me to immediately refuel with 95-octane to restore normal operation. Always choose reputable gas stations to avoid adulterated fuel. Using the wrong octane rating isn’t trivial—it could trigger the check engine light, leading to costly repairs. Make it a habit to confirm the fuel grade before refueling to ensure safe driving.