Dodge Durango SRT MPG: What Real-world Numbers Look Like
The Dodge Durango SRT, particularly the popular SRT 392 model, delivers EPA-rated fuel economy of 13 mpg city, 19 mpg highway, and 15 mpg combined, but real-world drivers consistently report figures closer to 13-18 mpg overall depending on conditions like aggressive acceleration and load. These numbers reflect the trade-off for its massive 6.4-liter HEMI V8 engine producing 475 horsepower, prioritizing performance over efficiency in this full-size SUV segment. Independent tests from outlets like Car and Driver confirm observed averages of 13 mpg combined and 17 mpg at 75 mph highway speeds.
Official EPA Ratings
The Environmental Protection Agency (EPA) sets the benchmark for fuel economy labels on new vehicles, using standardized testing cycles since the 1970s to ensure comparability across models. For the 2024 and 2025 Dodge Durango SRT 392 (AWD), ratings stand firm at 13 city / 19 highway / 15 combined mpg on premium gasoline. This marks no significant change from the 2018 model year introduction of the 6.4L HEMI in the SRT trim, where fueleconomy.gov lists identical 13/19/15 figures.
The SRT Hellcat variant, with its supercharged 6.2L HEMI pushing 710 hp, dips lower to 12 city / 17 highway / 14 combined mpg, as verified in dealer specs from mid-2024. These ratings assume a mix of city stop-and-go and steady highway cruising but often overestimate real-world results by 10-20% due to the SRT's performance-oriented tuning.
| Model Year | Trim | City MPG | Highway MPG | Combined MPG | Engine |
|---|---|---|---|---|---|
| 2024-2026 | SRT 392 | 13 | 19 | 15 | 6.4L V8 |
| 2024-2026 | SRT Hellcat | 12 | 17 | 14 | 6.2L Supercharged V8 |
| 2018-2023 | SRT 392 | 13 | 19 | 15 | 6.4L V8 |
Real-World MPG Data
Fuelly.com aggregates owner-reported data from over 25 Dodge Durango SRT vehicles tracking 536,000 miles as of April 2025, revealing average MPGs from 14.5 for 2019 models to 18.6 for select 2020 units under ideal conditions. Car and Driver's instrumented tests on 2022 and 2024 SRT 392 models yielded 13 mpg observed and 17 mpg at 75 mph, aligning closely with EPA highway but underperforming in mixed use.
Owner forums like Reddit showcase variability: A 2018 SRT owner claimed 27 MPG (11.4 km/L) on a fully loaded highway trip in Eco mode on March 22, 2025, though skeptics noted typical city drops to 13L/100km (~18 mpg equivalent), with mountain runs hitting 21 mpg. Jesus Behind the Wheel's 1,000-mile test of a 2024 Hellcat averaged 14 mpg, matching EPA combined precisely on June 26, 2024.
- Highway cruising (65-75 mph): 17-22 mpg possible with light throttle.
- Mixed city/highway: 13-15 mpg standard for SRT 392.
- Aggressive driving: Drops to 10-12 mpg, per Fuelly outliers.
- Loaded/towing: 9-11 mpg, as SRT's 8,700-lb tow rating stresses the V8.
- Premium fuel mandatory: Regular gas risks knocking in high-compression HEMI.
Factors Affecting MPG
Key variables like driving style dominate SRT efficiency, with the 4,753-lb curb weight and all-wheel drive sapping gains versus lighter RWD Durangos at 19/26 mpg. Historical context: Since the Durango's 2011 redesign, SRT variants sacrificed economy for muscle-car thrills, evolving from the 2018's debut 6.4L to Hellcat in 2021 amid Stellantis' performance push.
Tire choice matters-standard 20-inch Pirellis prioritize grip over rolling resistance-while winter rubber or plus-sizing can cut 1-2 mpg. Altitude and temperature also play roles; Denver tests often exceed sea-level by 1 mpg due to thinner air.
- Monitor tire pressure: Underinflation costs 0.5-1 mpg; aim for 35-38 psi cold.
- Engage Eco or Valet mode: Limits RPMs, boosting highway by 2-3 mpg as in Reddit's 27 mpg outlier.
- Avoid jackrabbit starts: SRT's 475 lb-ft torque tempts flooring it, halving efficiency.
- Lighten the load: Roof racks add drag, reducing highway MPG by up to 20% per DOE studies.
- Regular maintenance: Fresh plugs and filters maintain cylinder deactivation for 1-2 mpg gains.
"In our hands, the SRT 392 delivered just 13 mpg overall-proving EPA numbers are optimistic for thrill-seekers." - Car and Driver, August 31, 2023
Comparisons to Competitors
The Durango SRT lags behind efficiency leaders like the Jeep Grand Wagoneer (14/20 mpg) but matches muscle SUVs such as the Ford Explorer ST (18/25 observed, less power) in real-world tests. Versus the R/T trim's 14/22/17 EPA, SRT loses 2 mpg combined for 100+ extra horses, a fair trade for 0-60 in 4.5 seconds per MotorTrend's July 2024 data.
| Model | City MPG | Hwy MPG | Combined | Horsepower |
|---|---|---|---|---|
| Durango SRT 392 | 13 | 19 | 15 | 475 |
| Durango R/T | 14 | 22 | 17 | 360 |
| Ford Explorer ST | 18 | 25 | 21 | 400 |
| Jeep Wagoneer | 14 | 20 | 16 | 420 |
Cost of Ownership
At $1,495 average premium gas price (May 2026 AAA data), the SRT 392's 25.1-gal tank costs $37.55 to fill, yielding ~376 combined miles per tank-adequate for cross-state hauls but thirsty for daily commutes. Annual fuel costs hit $3,500 for 15,000 miles at 15 mpg, 25% above segment averages per Edmunds' February 2025 analysis.
Historical sales peaked in 2023 with 85,000 Durangos sold, SRT comprising 15%, buoyed by Hellcat hype before 2026 redesign rumors shifted focus to electrified rivals.
Maintenance for Efficiency
Chrysler's Multi-Displacement System (MDS) deactivates four cylinders on light loads, key to hitting 19 mpg highway-ensure software updates from the 2024 TSB maintain it. Oil changes every 8,000 miles with 0W-40 synthetic preserve power and economy.
- Air filter: Clean every 30k miles for 0.5 mpg boost.
- Spark plugs: Iridium types last 100k, optimizing MDS.
- Alignment: Correct toe-in reduces drag on AWD system.
This data underscores the SRT's identity: a Hellcat-powered family hauler where 15 mpg is the price of 160 mph top speed, per IIHS crash tests affirming its safety credentials alongside the guzzle.
Historical Evolution
Launched in 2018 as Dodge's halo SUV, the Durango SRT borrowed Charger Widebody's 6.4L, targeting enthusiasts amid rising gas prices post-2017 shale boom. By 2021 Hellcat arrival, EPA held steady despite 20-lb weight creep from tech adds like Uconnect 5.
Fuelly's 536k-mile dataset through 2025 shows slight improvements from early adopters refining habits, averaging 16.2 mpg fleet-wide versus initial 14.8 in 2018.
| Year | Fuelly Avg MPG | Vehicles Tracked | Miles |
|---|---|---|---|
| 2019 | 14.5 | 1 | 23,682 |
| 2020 | 18.6 | - | - |
| 2022 | 17.5 | 2 | - |
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Key concerns and solutions for Dodge Durango Srt Miles Per Gallon
How can I improve Durango SRT MPG?
Smooth acceleration, steady 65-70 mph highway speeds, and Eco mode activation yield 2-4 mpg gains; owners report 18-20 mpg on long trips with these tweaks.
Is SRT Hellcat worse on gas?
Yes, at 12/17/14 mpg EPA versus SRT 392's 13/19/15, the Hellcat's supercharger adds thirst but 710 hp justifies it for drag-strip fans.
What's the best real-world MPG reported?
Fuelly peaks at 18.6 mpg for 2020 SRTs; Reddit's 27 mpg highway claim (March 2025) used 4-cylinder MDS and light load, rare but achievable.
Does towing kill SRT efficiency?
Expect 8-10 mpg towing max trailer weights; the integrated trailer brake controller helps, but V8 strain is inevitable per NHTSA guidelines.
Any 2026 updates for MPG?
No confirmed changes as of May 9, 2026; Car and Driver notes potential hybrid rumors, but current SRT sticks to 13/19 ratings.