In 2008, the Avenger offered two engines: a 2.4-liter inline-four as the standard option and a 3.5-liter V6 as an optional upgrade. So, a V6 was available, but not all cars had it.
Engine options for 2008 Avenger
The Avenger lineup offered two powerplants, with the V6 being an optional upgrade on higher trims. Here are the two engines you could encounter on a 2008 Avenger.
- 2.4-liter inline-4 World Gas Engine (I4): about 173 horsepower and 166 lb-ft of torque; used on base models.
- 3.5-liter PowerTech V6: about 235 horsepower and 232 lb-ft of torque; optional on higher trims.
The V6 option was not standard across all trims; buyers had to opt for it as part of a higher-trim or package. If you’re looking at a used 2008 Avenger, check the engine type on the badge or VIN to confirm which powerplant it has.
Performance and efficiency
Engine choice affects both acceleration and fuel economy. The four-cylinder is lighter and typically delivers better highway mileage, while the V6 provides stronger passing power and quicker acceleration. Official fuel economy estimates from the era vary by transmission and drivetrain, but typical ranges were:
- 2.4-liter I4 (automatic): roughly 23-25 mpg city / 31-33 mpg highway.
- 3.5-liter V6 (automatic): roughly 18-21 mpg city / 28-30 mpg highway.
Note that these figures are EPA estimates and actual mileage depends on driving style, maintenance, and vehicle condition.
Summary
The 2008 Dodge Avenger did offer a V6 option in addition to a standard four-cylinder. If you’re researching or shopping for one, verify the engine via the VIN or door sticker to understand the exact performance and fuel economy you can expect from that particular car.