What the 2008 Dodge Charger SRT8 is and how it performs

The 2008 Dodge Charger SRT8 is a full-size performance sedan powered by a 6.1-liter V8 engine that produces 425 horsepower and 420 pound-feet of torque. It accelerates from 0 to 60 mph in approximately 4.5 seconds and has a top speed of 175 mph. The engine is paired with a 5-speed automatic transmission and rear-wheel drive.

This generation Charger SRT8 (model years 2006–2010) sits lower and wider than the standard Charger, with a more aggressive front grille, hood vents, and a functional rear spoiler. The interior includes sport-tuned suspension, performance brakes with cross-drilled rotors, and 20-inch wheels wrapped in summer performance tires. Fuel economy is approximately 14 mpg city and 23 mpg highway, though real-world numbers often run lower depending on driving habits.

Key Takeaways

  • The 2008 SRT8 uses a naturally aspirated 6.1-liter V8 that requires premium (91 octane) gasoline for optimal performance.
  • Curb weight is approximately 4,300 pounds, making it one of the heavier sedans of its era despite the performance focus.
  • The transmission is a 5-speed automatic with manual shift capability, not a manual gearbox.
  • Maintenance costs are higher than standard Chargers because of the larger engine, performance brakes, and specialized parts availability.
  • The 2008 model year introduced a revised interior and updated infotainment system compared to 2006–2007 versions.

Engine specifications and fuel requirements

The 6.1-liter V8 is a naturally aspirated engine, meaning it draws air through the intake without a turbocharger or supercharger. It produces peak horsepower at 6,200 rpm and peak torque at 4,800 rpm. The engine block is aluminum with cast-iron cylinder heads, and it uses a single overhead cam design with 16 valves total.

Dodge specifies premium unleaded gasoline (91 octane minimum) for this engine. Using regular 87-octane fuel can trigger engine knock and reduce performance, though the engine has a knock sensor that will adjust timing to prevent damage. The fuel tank holds 18.5 gallons. Oil capacity is 7 quarts with a filter, and Dodge recommends 5W-30 synthetic oil for the 2008 model year.

Transmission, suspension, and handling

The 5-speed automatic transmission is a Chrysler TorqueFlite unit with a torque converter. It includes a manual shift gate that lets the driver select gears directly, though it is not a true manual transmission. The transmission can be shifted using the gear selector or steering wheel-mounted paddle shifters. Gear ratios are tuned for performance rather than fuel economy.

The suspension uses a double-wishbone front end and a multi-link independent rear suspension, both tuned for a firmer ride than the standard Charger. Brakes are four-wheel disc with 14-inch rotors up front and 13-inch rotors in the rear, both cross-drilled and vented. The steering is hydraulic power-assisted with a variable ratio that quickens at full lock. Standard wheels are 20-inch forged aluminum with Goodyear or Pirelli summer performance tires.

Interior features and seating

The 2008 Charger SRT8 seats five across two rows with front bucket seats and a rear bench. The driver's seat is power-adjustable with lumbar support. The steering wheel is leather-wrapped and adjustable for tilt and telescoping. The dashboard features a 6.5-inch touchscreen with navigation, Bluetooth connectivity, and a 9-speaker audio system as standard equipment.

Interior trim is leather on the seats and steering wheel, with aluminum accents on the dashboard and door panels. The instrument cluster includes a digital speedometer, tachometer, and fuel gauge, with a multi-function display between them. Climate control is dual-zone automatic. The trunk holds 16.2 cubic feet of cargo space, and the rear seats do not fold flat.

Dimensions, weight, and cargo space

The 2008 Charger SRT8 is 200.3 inches long, 75.7 inches wide, and 58.8 inches tall. The wheelbase is 120 inches. Curb weight is approximately 4,300 pounds depending on options. The front track is 63.4 inches and the rear track is 63.2 inches, giving it a nearly square stance.

Ground clearance is 5.2 inches, which is typical for a sedan but limits approach and departure angles on rough terrain. The trunk opening is 18.3 inches wide and 12.8 inches tall, making it suitable for luggage but tight for larger items. There is no roof rack option available for this model.

Safety features and crash test ratings

The 2008 Charger SRT8 includes dual front airbags, side-impact airbags for the front seats, and side-curtain airbags that cover both rows. Electronic stability control (ESC) is standard and cannot be disabled. Anti-lock brakes (ABS) are standard on all four wheels. The car has a backup camera and parking sensors as optional equipment.

The National Highway Traffic Safety Administration (NHTSA) rated the 2008 Charger (all trims) with four stars overall in frontal crash tests and five stars in side-impact tests. Rollover resistance received four stars. The Insurance Institute for Highway Safety (IIHS) did not conduct crash tests on the Charger SRT8 specifically, but similar full-size sedans from that era typically scored "Good" in frontal offset and side-impact tests.

Common maintenance items and ownership costs

The 6.1-liter V8 requires oil changes every 10,000 miles using synthetic oil. Spark plugs are rated for 100,000 miles. The transmission fluid should be inspected at 60,000 miles and changed if discolored or burnt-smelling. Brake fluid is hygroscopic and should be flushed every two years regardless of mileage.

Tire replacement is necessary every 25,000 to 40,000 miles depending on driving style, because the performance tires wear faster than all-season tires on standard models. Brake pad replacement typically occurs between 40,000 and 60,000 miles. Parts availability is good for common items like filters and belts, but performance-specific parts such as the cross-drilled rotors or suspension components may require ordering from Dodge dealers or specialty suppliers. Insurance premiums for the SRT8 are higher than for standard Chargers due to the higher horsepower and repair costs.

Frequently Asked Questions

What is the difference between the 2008 SRT8 and the standard 2008 Charger?

The SRT8 has a 6.1-liter V8 with 425 hp versus the standard Charger's 3.5-liter V8 with 250 hp. The SRT8 includes performance suspension, cross-drilled brakes, 20-inch wheels, and a more aggressive exterior. The SRT8 is also heavier and costs significantly more.

Can I use regular 87-octane gasoline in a 2008 Charger SRT8?

The engine is designed for 91-octane premium fuel. Using 87-octane may cause engine knock and reduce performance. The knock sensor can adjust timing to prevent damage, but you will lose horsepower and efficiency.

How many seats does the 2008 Charger SRT8 have?

It seats five people: two in front and three in the rear. The rear seats do not fold flat, so cargo space is limited to the trunk.

What transmission does the 2008 SRT8 use?

It uses a 5-speed automatic transmission with a manual shift mode and steering wheel paddle shifters. It is not a manual transmission.

What is the fuel economy of a 2008 Charger SRT8?

EPA estimates are 14 mpg city and 23 mpg highway. Real-world numbers often run lower, especially in city driving or with aggressive acceleration. Actual mileage depends on driving habits and road conditions.