Contributing Writer, GM-Trucks.com
General Motors reported this morning that the all-new Silverado equipped with the 3.0-Liter Duramax diesel engine has earned an EPA-estimated 33 MPG Highway in 2WD configurations. Here is a quick look at the numbers we have so far:
2WD Silverado Duramax = 33 MPG Highway, 23 City
4X4 Silverado Duramax = 29 MPG Highway, 21 City
Here are a couple of quick comparisons:
2019 Ford F-150 2WD Diesel = 30 Highway, 22 City
2019 Ford F-150 4WD Diesel = 28 Highway, 22 City
2019 Ram 1500 2WD Diesel = 27 Highway, 20 City
2019 Ram 1500 4WD Diesel = 27 Highway, 19 City
**2020 Chevrolet Colorado 2WD DIesel = 30 Highway, 20 City
**2020 Chevrolet Colorado 4WD DIesel = 28 Highway, 19 City
“We designed the all-new Silverado and the all-new 3.0L Duramax turbo-diesel to deliver both performance and efficiency,” said Tim Herrick, Silverado executive chief engineer. “The engine utilizes state-of-the-art technologies to optimize every drop of fuel, and takes advantage of architectural changes to make Silverado larger, lighter and more aerodynamic than before. The resulting combination offers all of the performance, refinement and capability customers want in a full-size truck, with highway fuel efficiency you would expect from a family sedan.”
The trade-off for fuel economy alone will worth calculating. In addition to the higher fuel cost compared to gasoline, for the LTZ and High Country, the 3.0L Diesel is a $2,495 option (identical to that of the 6.2L V-8). For the LT and RST, it is a $3,890 increase over a 2.7L Turbo engine. For those looking for diesel towing capability, the choice will be an easy one.
The EPA has not yet published full MPG and emissions information on the new Duramax at its site, www.fueleconomy.gov. Once data is posted we will do a more in-depth post on the comparison to some other Silverado models. First deliveries of the 2020 Silverado with the Duramax engine will be this coming fall.
Hey peeps, I have a 15 GMC sierra 1500, it has the max tow package, with a 5.3, 6l80e, and 3.73 gears. What kind of fuel mileage are people getting with the same set up. I have some buddies that have similar rides, both 15 GMC's one has 3.08 gears a 5.3 with a speed and the other is 6.2 and an 8 speed with 3.42 they both get over 24 mpg. Anyone out there getting 19-20 on the highway like mine?
I have 2019 Silverado 1500LD stock to the bone. If install a cat back exhaust just a simple street 40 series flowmaster or a super10 flowmaster. Will it hurt my MPG? IF so do yall know by how much? I've never owned a truck I've only owned Camaros and Corvettes so this Pickup Ownership is new to me.
I like the fact that my 6.2 has lots of power and actually does get good gas mileage. I can run 65/70 and easily get 23-25mpg. I’m about to upgrade tires and looking for recommendations. I know I’ll lose some mpg and possibly low end power, but I don’t want to turn my beast of a truck into a turd.
I currently have stock 275/55r20 (31.9x10.8) on stock “snowflake” rims with Bilstein 2” strut/shock upgrade.
3 tire sizes I’m interested in:
If I had my way, I’d throw a 305/55r20 on there but I know I’d kill my power. I know this because I have 295/55r18 on my Ford and I ended up doing a gear swap from .373 to .456 to bet my power back.
I’m in the real estate business. I buy and sell farm and recreational land so I put lots of hwy miles on this GMC yet still need a tire to get me in and out of places on the farm and pull a tractor when I need to. I have trucks to mudbogg in, looking for practicality here.
Really hoping to to hear from guys with 6.2s.
Thanks in advance.
There are many MPG threads on here and other forums. Some say "If you bought a truck it ain't for MPG's" Of course there are more comments like this but my question is about an often used statement.
"Your truck's powertrain is still breaking in and It should continue to improve as time goes on." <- or something similar
I'm no rocket surgeon so forgive me for asking. Why is this often used statement used... and is there anything scientific to back it up?
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