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Home / Technology / Test drive: 2021 GMC Yukon diesel engine is specially designed for long-distance transportation, but the life span may be short

Test drive: 2021 GMC Yukon diesel engine is specially designed for long-distance transportation, but the life span may be short



GMC’s latest SUV may also be the last of its kind.

2021 Yukon can now be equipped with diesel engines. It is the same as the 3.0-liter turbocharged in-line six-cylinder engine offered in Sierra pickups, and is an alternative to the 5.3-liter and 6.2-liter V8s also available in both trucks.

The problem is that General Motors recently announced its plan to become an all-electric car manufacturer by 2035, so it is unlikely to add any new internal combustion engines before then, let alone diesel. It is not clear how long it will be sold, but the first battery-powered truck fleet will arrive in the form of GMC HUMMER EV in the second half of this year.

So, why do you still need Yukon Diesel now? Well, the market has made it very clear that not everyone is ready to switch to electric, especially long-distance buses. This type of engine is particularly suitable. According to data from the Diesel Technology Forum, sales of diesel SUVs and pickup trucks increased by 28% in 2020.

The 277 hp engine has the same torque rating as Yukon Denali’s 6.2-liter V8 engine, with a maximum rated torque of 460 lb-ft, providing 23 mpg of EPA combined fuel economy in two-wheel drive trucks and 22 in four-wheel drive trucks. mpg’s EPA integrated fuel economy. In a 10-speed automatic transmission in the Yukon, this is no easy task.

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This is more than 30% higher than the V8, and the rated power of the highway is 27 mpg and 26 mpg respectively, which brings the Yukon into a three-row cross country and allows it to cover 648 miles between refueling. The extended version of the Yukon XL can reach 756 miles, thanks to its larger fuel tank.

As important as the intended customer, the Yukon diesel engine can tow up to 8,100 pounds in two-wheel drive and 7,800 pounds in four-wheel drive, which is 200 to 300 pounds higher than the standard configuration of the V8. . However, the fuel truck can be equipped with an optional maximum towing package, giving it an advantage of 200 to 400 pounds.

Yukon diesel starts at $52,990, which is $1,000 more than the 5.3-liter V8 engine. In the highest-end Yukon Denali at $68,195, diesel is $500 cheaper than the model’s 6.2-liter V8. Even if diesel prices increase, annual fuel savings can range from US$200 to US$850.

GMC Yukon’s “Hurricane Turn” mode flies in place

Diesel engines do sound like the kind with the hood open, but in most cases they are unobtrusive. Stopping traffic is a bit awkward, but quiet down on the open road until you slam on the diesel pedal. It may not have a spark plug, but when you do, its responsiveness and willingness to recover are exciting.

Like the diesel provided by Chevrolet Tahoe/Suburban and Cadillac Escalade, the 2021 Yukon is also brand new, with a fully independent suspension. Its ride quality is several grades higher than previous models, which is before the addition of optional computer-controlled shock absorbers and an adjustable air suspension system.

The Yukon also received an interior with a dashboard design completely different from that of Tahoe, which helped to further differentiate it to justify its $1,700 higher price. In addition to this, the two principals share a rich feature set, including an electric center console that slides back to create additional storage space and reveal a secret compartment. A full set of electronic driver assistance systems with adaptive cruise control system and lane keeping assist system; head-up display; and high-definition 360 degree camera.

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There is also an off-road dedicated Yukon AT4 model, which is equipped with a special 4×4 system, skid plates, tow hooks and all-terrain tires, but only with a 5.3-liter V8, so you must plan for shorter land trips that diesel might provide

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2021 GMC Yukon Diesel

Base price: $52,990

As tested: $82,245

Type: 7-passenger, 4-door, four-wheel drive SUV

Engine: 3.0-liter turbocharged inline 6-cylinder diesel

Power: 277 horsepower, 460 pound-feet

Transmission: 10-speed automatic

Fuel economy: 20 cities / 26 highways


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