Ram · diesel
Ram 2500 fuel economy & road trip cost
The Ram 2500 (2015–2025) is rated at 18 combined MPG with a 32 gallon tank, giving roughly 461 miles between stops once you keep a sensible reserve.
Combined MPG
18
Tank
32 gal
Usable range
461 mi
Cost per mile
$0.192
Gas cost per 100 miles in a Ram 2500
| Pump price ($/gal) | 100 miles | 300 miles | Full tank |
|---|---|---|---|
| $3.00 | $16.67 | $50.00 | $96.00 |
| $3.50 | $19.44 | $58.33 | $112.00 |
| $4.00 | $22.22 | $66.67 | $128.00 |
| $4.50 | $25.00 | $75.00 | $144.00 |
| $5.00 | $27.78 | $83.33 | $160.00 |
Highway-heavy trips usually beat the combined rating; city traffic and roof loads reduce it.
Popular trips in a Ram 2500
- Las Vegas to Phoenix · ~$58
- Las Vegas to Los Angeles · ~$52
- Los Angeles to San Francisco · ~$79
- Los Angeles to San Diego · ~$25
- Los Angeles to Las Vegas · ~$52
- San Francisco to Los Angeles · ~$79
- New York to Boston · ~$43
- New York to Washington · ~$46
- New York to Philadelphia · ~$18
- Chicago to Indianapolis · ~$37
- Chicago to Detroit · ~$54
- Chicago to St. Louis · ~$59
Other Ram models
Fuel figures on this page are modelled estimates built from published EPA combined MPG ratings and curated regional pump-price baselines. They are not live station quotes — always confirm the price at the pump before you travel.