
Cadillac CT5 has a comprehensive fuel consumption of 7.2L per 100 kilometers under standard driving conditions. Below is an introduction to fuel consumption per 100 kilometers: 1. Definition: Fuel consumption per 100 kilometers refers to the amount of fuel a vehicle consumes when traveling 100 kilometers at a certain speed on the road. It is a theoretical indicator for vehicles. Manufacturers measure this value under controlled conditions using a dynamometer installed on the vehicle's chassis, converting it into speed parameters, and then calculating the theoretical experimental fuel consumption per 100 kilometers for the model. 2. Actual fuel consumption: Since most vehicles approach their most economical speed at around 90 km/h, the published theoretical fuel consumption is usually the fuel consumption per 100 kilometers at 90 km/h.

I've been driving this CT5 for almost a year now. During peak commuting hours in the city with heavy traffic, it can reach around 12 liters per 100km, but it's quite fuel-efficient on highways, averaging about 7-8 liters. Once, I specifically tested it on a long trip with a friend. We used cruise control at 120 km/h the whole way with the AC on, and the fuel consumption was surprisingly low at just 7.2 liters. After all, this car has a 2.0T engine paired with a 10-speed automatic transmission and 237 horsepower. The strong acceleration gives you that push-back feeling, but it naturally consumes more fuel. Driving habits make a big difference – when I often drive in sport mode for some spirited driving, the fuel gauge drops rapidly. If there are elderly or children in the car, I switch to comfort mode to save some fuel. Regular maintenance like keeping tire pressure from getting too low and changing air filters can also help save a bit on fuel.

The official combined fuel consumption for the Cadillac CT5 is stated as 7.5 to 7.9 liters per 100 kilometers, and real-world tests generally fall within this range, though actual figures may vary. The engine technology is quite advanced, with the cylinder deactivation feature proving practical—automatically switching from four to two cylinders during steady cruising does save fuel. The main influencing factors remain driving habits and road conditions. In congested cities like Beijing, Shanghai, or Guangzhou, consumption typically exceeds 10 liters, while steady highway driving at 120 km/h can bring it down to just over 7 liters. It’s advisable to use cruise control on highways and anticipate traffic lights in the city to avoid harsh braking. My personal average stays below 9 liters. Also, avoid overloading the trunk, as extra weight naturally increases fuel consumption.

Over the past six months of driving the CT5, fuel consumption during weekday rush hour commutes in the city has consistently stayed around 11L/100km, while weekend drives on suburban highways can drop to approximately 8L. The 2.0T engine's explosive power is truly exhilarating, especially in Sport mode with the roaring acceleration sound and soaring RPMs – though fuel consumption immediately spikes to 13L/100km, which is quite intense. The car features active grille shutter technology, which helps warm up the engine faster in winter and saves some fuel. Running AC typically adds about 1L/100km, and heavy loads increase consumption by roughly 0.5L. New owners should note that fuel consumption tends to be higher during the first 3,000-km break-in period. Maintaining tire pressure around 2.4 bar strikes the best balance – too low increases fuel consumption, while too high makes the ride bumpy.

As a CT5 owner, the most direct experience is the significant difference in fuel consumption under various road conditions. During the morning and evening rush hours with stop-and-go traffic, the fuel consumption typically ranges between 11-13 liters, and can even reach 14 liters in severe traffic jams. Highway driving is much more fuel-efficient, with the most economical consumption of 6.8 liters at 80-100 km/h, rising to around 7.5 liters at 120 km/h. Using the air conditioning adds approximately 1 liter to the consumption. Driving habits play a crucial role; I intentionally tried driving smoothly for a month—reducing sudden acceleration and anticipating braking—which directly lowered the fuel consumption by 1.5 liters. Regular maintenance is also vital. After a recent major service where the air filter and spark plugs were replaced, the throttle felt more responsive, and the fuel consumption decreased slightly.

My CT5 has covered over 20,000 kilometers with an average fuel consumption fluctuating around 9.2L/100km. The weather makes a noticeable difference: summer AC usage in city commuting pushes it above 11L, while winter without AC saves about 1L. Rush hour traffic can spike consumption to 13L, whereas weekend highway trips are most fuel-efficient at just over 7L. I recommend maintaining steady speeds and avoiding frequent revs above 3,000 rpm. Eco mode saves fuel compared to Sport mode but with slower throttle response - better for urban use. Last month's long-distance test showed a full 72L tank could cover nearly 900km on highways, working out to about 8L/100km which matched estimates.


