Nightmare at the pump: the 10 vehicles that consume the most gasoline in 2026
With oil prices skyrocketing right now, filling up the tank is very expensive (even with the recent suspension of the federal excise tax on gasoline and diesel), and drivers need to find solutions.
There are several ways to save money at the pump, including changing your driving habits. We’ve also put together a list of the most fuel-efficient cars and SUVs for 2026, in case you’re in the market for a new vehicle.
For some, however, fuel consumption doesn’t seem to be an issue, even when it comes to premium gasoline. So we did the opposite and compiled a list of the 10 most fuel-hungry vehicles on the market in 2026, based on official ratings from Natural Resources Canada. Note that exotic sports cars and other models with extremely limited production runs (Ferrari, Lamborghini, Ford Mustang GTD, etc.) are excluded here. The same goes for those heavy, powerful plug-in hybrids capable of traveling a significant distance in electric mode (BMW M5 and XM, etc.).
10. Ram 1500 RHO
Engine: 3.0-liter turbocharged 6-cylinder (540 horsepower, 521 lb-ft of torque)
Average fuel consumption: 15.9 L/100 km
Capable and formidable off-road, the RHO model took over in 2025 from the discontinued Ram 1500 TRX, once the most fuel-thirsty vehicle in Canada. The high-output version of the Hurricane engine still falls far short of the 6.2-liter supercharged V8 in terms of power
Engine: 6.2-liter naturally aspirated V8 (420 horsepower, 460 lb-ft of torque)
Average fuel consumption: 16 L/100 km
The Sierra AT4X is a powerful pickup truck designed to venture far off the beaten path… provided you’ve filled up the gas tank. It’s also available with a diesel engine that gets 12.1 L/100 km. However, diesel prices at the pump these days are even more staggering.
Engine: 3.0-liter turbocharged 6-cylinder (282 horsepower, 332 lb-ft of torque)
Average fuel consumption: 16 L/100 km
This retro-styled British SUV is powered by one of BMW’s most reliable and efficient engines. It performs exceptionally well, even though its fuel consumption is on par with that of a large V8. That’s to be expected, given that we’re dealing with a 2,650-kg beast with aerodynamics comparable to those of a freezer.
7. Mercedes-Benz Maybach S 680
Engine: 6.0-liter twin-turbo V12 (621 horsepower, 664 lb-ft of torque)
Average fuel consumption: 16.1 L/100 km
The German automaker has confirmed that the 6.0-liter V12 engine will still be available in the new version of the Maybach, which is set to undergo a facelift in 2027 alongside the S-Class on which it is based. Fuel consumption will therefore remain very high.
Engine: 4.0-liter twin-turbo V8 (577 horsepower, 627 lb-ft of torque)
Average fuel consumption: 16.2 L/100 km
No one would expect miracles from this refrigerator capable of climbing Mount Everest and making it back down. Mercedes-Benz is making amends, however, with a fully electric version of its iconic SUV.
5. Chevrolet Corvette Z06 with the Carbon Aero Package
Engine: 5.5-liter naturally aspirated V8 (670 horsepower, 460 lb-ft of torque)
Average fuel consumption: 16.7 L/100 km
While the cost at the pump may be daunting, the sound of the engine with its flat-crankpin crankshaft and its high-revving prowess are truly captivating. Incidentally, the 1,064-horsepower Corvette ZR1 is more fuel-efficient… by one-tenth of a liter per 100 km. As for the new 1,250-horsepower Corvette ZR1X, which features an electric motor, it gets 16.2 L/100 km.
Engine: 6.4-liter naturally aspirated V8 (470 horsepower, 470 lb-ft of torque)
Average fuel consumption: 16.8 L/100 km
The 6.4-liter HEMI, which was phased out in Canada in 2025, is making a comeback in the Wrangler 392. This model is available in a Moab edition to mark the 60th anniversary of the famous Easter Jeep Safari in this Utah city. The massive 35-inch off-road tires don’t exactly help with fuel economy…
Engine: 6.2-liter supercharged V8 (710 horsepower, 645 lb-ft of torque)
Average fuel consumption: 17.4 L/100 km
“Vroom, vroom, gulp, gulp”: that could be the Durango’s slogan, as our colleague Hugues Gonnot pointed out. The HEMI V8 is still going strong, and its supercharged version in the SRT Hellcat model delivers a pure adrenaline rush on the straightaway.
Engine: 6.2-liter supercharged V8 (682 horsepower, 653 lb-ft of torque)
Average fuel consumption: 17.7 L/100 km
Just look at the Escalade-V’s appetite to make up for the 15 L/100 km that the standard Escalade guzzles. With power equivalent to that of the all-electric Escalade IQ, the V model covers the quarter-mile in 12.8 seconds, roaring at the top of its lungs like a Corvette Z06.
Engine: 5.2-liter supercharged V8 (720 horsepower, 640 lb-ft of torque)
Average fuel consumption: 19.7 L/100 km
Once again this year, Ford’s ultimate off-road pickup tops the list of the most fuel-hungry vehicles. However, the F-150 Raptor R could soon be dethroned by the new 777-horsepower 2027 Ram 1500 SRT TRX, whose fuel economy ratings have yet to be released.
