Worst MPG cars in 2026
The most fuel-thirsty vehicles on the market, ranked by combined MPG.
Not every car is built for fuel economy. Some prioritize power, towing capacity, or off-road capability over efficiency. But the difference between the best and worst vehicles on this list is staggering — up to $3,000+ per year in fuel costs.
All figures use EPA combined MPG ratings. Fuel costs assume 12,000 miles/year at $3.50/gallon. Use our fuel cost calculator for your own driving.
⚠️ Warning: Some of these MPG numbers are not typos. Certain high-performance and heavy-duty vehicles genuinely get single-digit fuel economy.
🏆 The worst of the worst (combined MPG < 14)
These vehicles set a new low for fuel economy. If you daily-drive one of these, you're spending over $3,000/year on gas alone.
Full-size trucks (14–16 MPG)
Even the most popular trucks in America get terrible MPG. The Ford F-150 (non-hybrid), Chevrolet Silverado, and RAM 1500 all sit in this range with their standard V8 engines.
Large SUVs (14–17 MPG)
Big SUVs with V8 engines are some of the thirstiest vehicles on the road. Some manage to stay in the mid-teens, but many dip into the 14 MPG range.
Sports cars & performance (14–19 MPG)
Power comes at a price. High-performance sports cars sacrifice fuel economy for speed — with the worst offenders barely cracking 14 MPG in combined driving.
The real cost of low MPG
To understand the true financial impact, here's the annual fuel cost at 12,000 miles for different MPG ratings:
A Ram 1500 TRX costs $3,360 more to fuel per year than a Toyota Prius. Over 5 years, that's nearly $17,000 — just in gas. Use our fuel savings calculator to compare your current vehicle against a more efficient alternative.
Why do some cars have such bad MPG?
The worst MPG cars aren't bad engineering. In most cases, fuel economy was sacrificed for one of these priorities:
- → Horsepower and acceleration. A supercharged V8 producing 700+ HP is inherently inefficient. The fuel goes into power, not distance.
- → Weight. Full-size SUVs and heavy-duty trucks weigh 5,500–8,000 lbs. Moving that mass requires energy, regardless of the engine.
- → Aerodynamics. The Jeep Wrangler's brick-like shape creates massive drag at highway speeds, hurting MPG even with its smaller engine options.
- → Towing and payload capacity. Heavy-duty suspension, reinforced frames, and low gearing for towing all hurt fuel economy. A truck that can tow 12,000 lbs will never get Prius numbers.
How to save money if you drive a gas guzzler
If you need a truck, large SUV, or performance car and can't downsize, these tips help minimize the pain at the pump:
- ✓ Hybrid alternatives. If you drive a truck primarily for commuting with occasional towing, the Ford F-150 PowerBoost Hybrid (25 MPG combined) saves you over $1,000/year vs the V8 version.
- ✓ Track your actual MPG. Use our MPG calculator after every fill-up. Knowing your real-world numbers helps you see the impact of driving habits.
- ✓ Reduce idle time. Idling burns 0.2–0.5 gallons per hour in trucks. In cold climates, remote starters that run for 15+ minutes add up quickly.
- ✓ Check your tire pressure monthly. Under-inflated tires can reduce MPG by 2–3%. Trucks with off-road tires lose even more.
- ✓ Use the right fuel. High-performance cars that require premium can cost $400–600 more per year than a comparable car on regular. Make sure you're not overpaying if your car doesn't require it.