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Comparing the gas vs diesel model, the 2021 Chevrolet Tahoe diesel leads the lineup with a rating of 24 mpg in combined city and highway driving. It's much more frugal than the gas Tahoe, which tops out at 18 mpg. The beefier 2021 Chevrolet Suburban diesel gets 23 mpg, a sum that bests the gas model's rating by 5 mpg.

I will be using the Tahoe as a daily driver and clearly the diesel with its better MPG rating seems like the better choice, but is there anything else I should be aware of? Are there still pros to going with the gas model for my needs? This will be my first time owning a diesel.

Thanks.
 

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I just got a 2021 Yukon Denali 4WD and I opted for the 6.2L V8. For my kind of driving, frequent short trips and low annual mileage, I prefer a gas engine. If I put a lot of miles on a vehicle I would have considered diesel.

For a large heavy SUV, I question whether this 3.0L diesel engine is too small. If you need quick acceleration, like entering a freeway on a short onramp, good luck. Also this diesel has less towing capacity than either of the gas engines.

By the way, as most people have probably know by now, this 3.0L diesel uses a belt to drive the engine oil pump. Like a timing belt, eventually there will come a time to replace it. This requires dropping the transmission in order to access the rear of the engine. Not a bill I would look forward to seeing. I don't think it requires changing for 150k miles though.
 

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My 2 cents; I will be ordering a Yukon Diesel hopefully soon. Main reason for me is fuel economy for long road trips and towing. It will be my first diesel. My 02 Tahoe has 205000 miles and needs some TLC.
Being a car guy, the wet belt doesn't concern me. I believe that belt will go 200k before becoming an issue, Will probably need a trans before that if towing. ( My Opinion )
There will definitely be first year production bugs with the engine as we are seeing now with the Chassis redesign.
Time will tell

Pros;
FUEL ECONOMY!
Cons;
All new production
Diesel repair costs long term?
Diesel in my NJ seems about .20/.25 cents more per gallon. ( about the same as 93 octane)
Looking forward to input from others.
Mike
 

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Good day all,

I have a Yukon Denali Diesel on order since early November and eagerly awaiting its arrival. It currently has a TPW of January 25th, which means I hope to receive it by the middle of February.

I ordered it with the Duramax 3.0 Turbo Diesel as it's a cleaner and more efficient powerplant than the 6.2 gas engine and those who own a Silverado or Sierra with the engine seem for the most part to love it's smoothness, torque, and efficiency.

It's a bit of a risk perhaps and but I'll be sure to let y'all know how it works once I receive it.
 

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I got a diesel RST a few weeks ago and don’t regret it. I upgraded from a 2007 Tahoe LS and the diesel has more pep. It’s noticeably quicker and has not showed any signs of being sluggish. The MPGs on this are no joke we avg 22mpg if we do a lot of city driving but I just took a trip from the Bay Area to Disneyland and it only took 1/2 a tank and gave us something like 28mpg on that tank.

So compared to the 2007 I’m paying a lot less for fuel based on the price and the MPG.
 
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