2018 head-to-head · Full-Size Pickup
2018 GMC Sierra vs Ram 1500
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.10/gal regular gas, the most efficient 2018 GMC Sierra (20 MPG) costs about $2,325 a year to fuel and the 2018 Ram 1500 (20 MPG) about $2,325.
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
Side by side
| GMC Sierra | Ram 1500 | |
|---|---|---|
| $2,325 | Your annual fuel cost | $2,325 |
| 20 MPG | Combined efficiency | 20 MPG |
| 18 MPG | City | 17 MPG |
| 24 MPG | Highway | 25 MPG |
| 448 g/mi | Tailpipe CO₂ (g/mi) | 450 g/mi |
| 4/10 | EPA fuel economy score | 4/10 |
| 4/10 | EPA greenhouse gas score | 4/10 |
| Flex-fuel | Powertrain | Flex-fuel |
| Regular gasoline or E85 | Fuel | Regular gasoline or E85 |
| 4.3L 6-cyl | Engine / motor | 3.6L 6-cyl |
| 6-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 across model years
- GMC Sierra
- Ram 1500
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 2018 full-size pickups, the GMC Sierra ranks 4th and the Ram 1500 8th for lowest fuel cost.
Frequently asked questions
How much does it cost to fuel the 2018 GMC Sierra vs. the Ram 1500 per year?
At 15,000 miles a year with $3.10/gal regular gas, about $2,325 for the GMC Sierra and $2,325 for the Ram 1500.
GMC Sierra vs Ram 1500 in other years
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