The 2021 Chevrolet Tahoe and 2021 Chevrolet Suburban arrived last December as all-new, next-gen overhauls for both nameplates. In addition to new styling, fresh underpinnings, and the latest tech features, both models now offer an optional turbodiesel engine. However, GM Authority has learned that both the new Tahoe diesel and the new Suburban diesel will have late availability.
Buyers interested in equipping their new 2021 Chevrolet Tahoe or 2021 Chevrolet Suburban with the optional turbodiesel engine will need to wait approximately three months after the first examples of the full-size SUVs roll off the line at GM’s production facility in Arlington, Texas. That’s a bit of a downer for those buyers anxious to get either of these utility vehicles with an oil burner under the hood, but luckily, GM’s line of all-new SUVs is on track for first deliveries in June, as outlined by GM CEO Mary Barra in the recent Q1 2020 earnings call.
As a reminder, the 2021 Chevrolet Tahoe and 2021 Chevrolet Suburban now offer the turbodiesel 3.0L I6 LM2 Duramax as an available option for every trim level except the off-road oriented Z71.
Output from the diesel engine is rated at 277 horsepower and 460 pound-feet of torque, with the GM 10-speed automatic transmission onboard for cog swaps. Fuel economy for the diesel option is currently unavailable.
Meanwhile, both the 2021 Chevrolet Tahoe and the 2021 Chevrolet Suburban are equipped with the naturally aspirated 5.3L V8 L84 as standard on LS, LT, Z71, RST, and Premier trim levels. Output is rated at 355 horsepower and 383 pound-feet of torque, with the GM 10-speed once again handling transmission duties. Fuel returns range between 17 and 18 mpg combined, depending on the configuration.
Finally, the naturally aspirated 6.2L V8 L87 is standard on High Country models, and produces 420 horsepower and 460 pound-feet of torque, while also mating the GM 10-speed automatic transmission. Fuel returns range between 16 mpg and 17 mpg combined depending on the configuration.
Is the diesel engine option worth the wait? Let us know in the comments, and make sure to subscribe to GM Authority for more Chevrolet Tahoe news, Chevrolet Suburban news, Chevrolet news, and around-the-clock GM news coverage.
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This is not surprising. Any new diesel engine offering has ALWAYS been a late availability. This means you won’t see any 2021s with the diesel until May or June of next year…..
That’s fine, just let us know how it will perform so we can make an informed decision on whether to wait or not.
I love my 6.2L V8, which has better horsepower and the same torque ratings as the baby duramax diesel. Unless the fuel mileage performance of the baby duramax is substantially better than the 6.2L V8, I don’t see what gap in the market is filled by the baby duramax offering.
That’s what I’m waiting to see. We pay a substantial amount more for diesel here, plus the cost of DEF. As you said, it had better offer substantial savings to warrant the selection.
Talk to folks with the same 3L Diesel in the Sierra or Silverado and they’ll tell you the diesel has great torque at low RPM’s and the mileage is much better than the ratings. The diesel is well worth it. I drove a new 5.3 and found it didn’t tow well with a load and moderate winds; it’s either the diesel or the gas 6.2, but the torque on the 6.2 is at much higher RPM’s and the mileage is very low. It’s a diesel for me.
The 5.3L in a Yukon/Tahoe has always felt under-powered to me, although is has gotten 10% better since my 2007. I thought the 3.0L diesel was a great fit for the big GM SUVs but with the 6.2L having same torque and higher horsepower I am really wondering if it is IS worth it? Guess we’ll have to see how the MPG figures come out but with 20-30% “because we can” gouge-factor that US oil companies put on cheaper to produce diesel, it looks like it’s going to be tough to justify the diesels I like so much. Only big remaining factor now is that gasohol goes bad in a few weeks if left untreated. Never was that big an issue until COVID19 shut down travel. Still, looks like it will be tough to use that as a reason to not just buy the 6.2 and add Ethanol Shield with every fill up.
I mean, who wouldn’t rather have an L5P Suburban? That would be 3 tons of fun.
Look at description of the “wet belt” that runs the oil pump starting at 1:00 and 2:30 of this video and tell me if you still want to wait for the Duramax
https://youtu.be/NFNsg7bCtdA
Perfect for Norway,diesel is cheaper than gas
Why won’t the Duramax come in the Z71 models?
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