2019 head-to-head · Full-Size Pickup

2019 GMC Sierra vs Ram 1500 Diesel

MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.

Swap sides
✓ Cheaper to run
$2,214/ year to fuel
21 MPG
✓ Cheaper to run
$2,413/ year to fuel
23 MPG

The 2019 GMC Sierra is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas and $3.70/gal diesel fuel, it costs about $2,214 a year to fuel (21 MPG), versus $2,413 for the 2019 Ram 1500 Diesel (23 MPG). That's roughly $199 a year, or about $994 over five years.

Your numbers

Change these to match your driving and local prices. Every figure and chart on this page updates.

Fuel cost over 10 years

  • GMC Sierra
  • Ram 1500 Diesel

Side by side

GMC SierraRam 1500 Diesel
$2,214 Your annual fuel cost $2,413
21 MPG Combined efficiency 23 MPG
20 MPG City 20 MPG
23 MPG Highway 27 MPG
421 g/mi Tailpipe CO₂ (g/mi) 448 g/mi
4/10 EPA fuel economy score 5/10
4/10 EPA greenhouse gas score 4/10
Gas Powertrain Diesel
Regular gasoline Fuel Diesel
2.7L 4-cyl turbo Engine / motor 3.0L 6-cyl turbo
8-speed automatic Transmission 8-speed automatic
RWD Drivetrain RWD

✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.

GMC Sierra vs Ram 1500 Diesel across model years

  • GMC Sierra
  • Ram 1500 Diesel

Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.

How they differ

Among 12 2019 full-size pickups, the GMC Sierra ranks 5th and the Ram 1500 Diesel 9th for lowest fuel cost.

The powertrains differ: the GMC Sierra is a conventional gas model, while the Ram 1500 Diesel is a diesel.

Frequently asked questions

Which is more fuel-efficient, the 2019 GMC Sierra or the 2019 Ram 1500 Diesel?

Measured by cost to drive, the GMC Sierra. The GMC Sierra is rated 21 MPG combined and the Ram 1500 Diesel 23 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2019 GMC Sierra vs. the Ram 1500 Diesel per year?

At 15,000 miles a year with $3.10/gal regular gas and $3.70/gal diesel fuel, about $2,214 for the GMC Sierra and $2,413 for the Ram 1500 Diesel.

GMC Sierra vs Ram 1500 Diesel in other years

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