The 2008 Charger R/T gets 16 miles per gallon in the city and 25 on the highway

The 2008 Dodge Charger R/T, powered by a 5.7-liter V8 engine, achieves an EPA-estimated 16 mpg in city driving and 25 mpg on the highway, with a combined rating of 19 mpg. This is the official fuel economy figure you'll see on the window sticker of a used 2008 model. Real-world mileage varies based on driving habits, road conditions, and how well the engine is maintained.

The Charger R/T was built during a time when fuel economy standards were less stringent than they are today. The V8 engine produces 370 horsepower and 395 pound-feet of torque, which explains the relatively modest fuel economy compared to modern vehicles. If you're considering purchasing one, understanding these numbers helps you budget for gas costs over time.

Key Takeaways

  • The 2008 Charger R/T has an EPA rating of 16 city / 25 highway / 19 combined mpg.
  • The vehicle's 5.7-liter V8 engine produces significant power but uses more fuel than smaller engines.
  • Actual fuel economy depends on your driving style, traffic conditions, and how well you maintain the engine.
  • The Charger R/T produces emissions typical of 2008 gasoline V8 vehicles and does not meet modern emissions standards.

How the 2008 Charger R/T compares to other vehicles from that year

In 2008, the Charger R/T's fuel economy was competitive for a full-size performance sedan with a V8 engine. A 2008 Dodge Challenger R/T, which shared the same engine, had identical fuel economy ratings. By contrast, a 2008 Toyota Camry with a V6 achieved 21 mpg combined, and a 2008 Honda Accord with a V6 reached 23 mpg combined.

The difference reflects the trade-off between power and efficiency. The Charger R/T prioritized performance; the V8 engine was designed to deliver quick acceleration and towing capacity rather than minimal fuel consumption. If fuel economy was your primary concern in 2008, you would have chosen a four-cylinder sedan or a hybrid.

What emissions standards the 2008 Charger R/T meets

The 2008 Charger R/T meets the Tier 2 Bin 8 emissions standard that was in effect when it was manufactured. This standard regulated nitrogen oxides (NOx), particulate matter, and other pollutants, but it is less strict than the standards applied to vehicles built today. The vehicle produces carbon dioxide (CO2) as a byproduct of burning gasoline, contributing to greenhouse gas emissions.

Modern vehicles are held to Tier 3 standards and stricter CO2 limits. A 2008 Charger R/T would not pass current new-vehicle emissions tests. However, if the vehicle is registered in your state and passes your state's inspection program (if your state requires one), it is legal to drive on public roads.

Factors that affect real-world fuel economy

The EPA rating of 16/25/19 assumes average driving conditions: a mix of city and highway speeds, moderate acceleration, and a well-maintained engine. Your actual mileage will differ based on several factors you control. Aggressive acceleration, frequent idling, and driving in stop-and-go traffic all reduce fuel economy. Highway driving at steady speeds improves it.

Engine maintenance also matters. A clogged air filter, worn spark plugs, or low tire pressure all reduce efficiency. If you're buying a used 2008 Charger R/T, have a mechanic inspect the engine and fuel system to may support they're in good working order. A vehicle that hasn't been well maintained may perform worse than the EPA estimate.

Fuel tank size and driving range

The 2008 Charger R/T has an 18-gallon fuel tank. At the EPA-estimated combined rating of 19 mpg, a full tank gives you a theoretical range of about 342 miles before you need to refuel. In practice, you'll want to refuel before the tank is completely empty, so plan for a driving range closer to 300 miles between fill-ups.

On a highway trip at 25 mpg, you could travel roughly 450 miles on a full tank. In city driving at 16 mpg, that same tank would take you about 288 miles. These numbers help you plan long trips and understand how often you'll need to stop for gas.

Maintenance and fuel system considerations for older V8 engines

A 2008 Charger R/T is now over 15 years old. If you're considering buying one, the fuel system and engine condition directly affect both fuel economy and reliability. Fuel injectors can become clogged over time, reducing efficiency. The oxygen sensors that help the engine run at peak efficiency can wear out, causing the vehicle to burn more fuel and produce higher emissions.

Regular oil changes, air filter replacements, and fuel system cleaning help maintain the engine's efficiency. If the check engine light is on, have the vehicle scanned for diagnostic trouble codes before purchase. A vehicle with stored codes may have underlying problems that worsen fuel economy and increase emissions.

Whether the 2008 Charger R/T makes sense for your budget

If you drive 12,000 miles per year and gas costs $3.50 per gallon, the 2008 Charger R/T at 19 mpg combined would cost roughly $2,210 per year in fuel alone. A 2008 sedan that achieves 25 mpg combined would cost about $1,680 per year—a difference of $530 annually. Over five years of ownership, that's $2,650 in additional fuel costs.

The Charger R/T appeals to drivers who value performance and styling over fuel economy. If you're drawn to the vehicle for those reasons and can afford the fuel costs, it's a straightforward choice. If fuel economy is your priority, a smaller or more efficient vehicle from that era would serve you better.

Frequently Asked Questions

Can I improve the fuel economy of a 2008 Charger R/T?

You can improve it slightly through maintenance: keeping the engine tuned, replacing air filters on schedule, maintaining proper tire pressure, and avoiding aggressive driving. However, the V8 engine's design limits how much improvement is possible. Aftermarket modifications that claim to significantly boost economy are generally not effective.

Does the 2008 Charger R/T require premium gasoline?

The 2008 Charger R/T is designed to run on regular unleaded gasoline (87 octane), though Dodge recommends premium (91 octane) for optimal performance. Using regular gas won't damage the engine, but you may notice slightly reduced power and fuel economy. Check your owner's manual for the manufacturer's recommendation.

How does the 2008 Charger R/T's fuel economy compare to modern V8 vehicles?

Modern V8 vehicles are significantly more efficient. A 2023 Dodge Charger R/T achieves approximately 16 city / 27 highway mpg—the same city rating but 2 mpg better on the highway. Improvements in engine technology, transmission design, and aerodynamics have made newer vehicles more efficient while maintaining or increasing power.

Will a 2008 Charger R/T pass emissions testing in my state?

That depends on your state's inspection program. Some states do not require emissions testing for any vehicles. Others test all vehicles or only those under a certain age. Contact your state's Department of Motor Vehicles to learn what your state requires. A well-maintained 2008 Charger R/T should pass if your state tests it.