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How many miles can you get out of a 2008 Chevy Suburban?

On a full tank, a 2008 Chevy Suburban typically offers roughly 450 to 650 miles of range, depending on the engine, drivetrain, and driving conditions. The SUV uses about a 31-gallon fuel tank, so your range scales with how efficiently you use fuel in real-world driving.


What determines the range


Several factors influence how far you can go on a tank of gas, including the choice of engine, whether the vehicle is configured for two-wheel drive or four-wheel drive, payload and towing, terrain, and driving habits. The 2008 Suburban offered two V8 engines and two drivetrain configurations, all affecting miles-per-gallon (MPG) and therefore overall range.


Engine and drivetrain options


The 2008 Suburban was available with a 5.3-liter V8 and a 6.0-liter V8, in both rear-wheel drive (RWD) and four-wheel drive (4WD) setups. The larger 6.0L engine generally consumes more fuel, which reduces range compared with the 5.3L. Across configurations, the fuel tank capacity remains about 31 gallons.


Estimated driving range by configuration


Here are approximate ranges based on common configurations and typical mixed driving, using a 31-gallon tank as the baseline.



  • 5.3L V8, 2WD: combined ~17–18 mpg → range ≈ 527–558 miles

  • 5.3L V8, 4WD: combined ~15–17 mpg → range ≈ 465–527 miles

  • 6.0L V8, 2WD: combined ~15–16 mpg → range ≈ 465–496 miles

  • 6.0L V8, 4WD: combined ~14–15 mpg → range ≈ 434–465 miles


Note: These ranges are rough estimates based on typical real-world fuel economy for the era and configuration. Actual mileage varies with driving style, terrain, towing, and maintenance.


How to maximize range


If you’re looking to stretch miles per tank, consider these practical approaches that can improve efficiency without compromising safety or capability:



  • Maintain a steady speed and use cruise control on highways to reduce fuel spikes from acceleration.

  • Keep tires inflated to the recommended PSI values; underinflated tires reduce efficiency.

  • Lighten the load and minimize aerodynamic drag (roof racks, heavy cargo) to improve MPG.

  • Avoid prolonged idling and aggressive driving, especially in city conditions.

  • Keep up with regular maintenance, including air filters, spark plugs, and ignition components, to maintain optimal efficiency.


While you can adopt these habits to improve range, heavy towing or frequent steep hills will still lower miles-per-tank relative to a baseline condition.


Bottom line


For most 2008 Suburban configurations, a full 31-gallon tank typically yields a practical range in the mid-400s to mid-500s miles under mixed driving. If you prioritize highway cruising with a 5.3L V8 in 2WD, you’re toward the higher end of the range; towing, payload, and 4WD will generally pull you toward the lower end. Real-world range will always vary based on how you drive and how the vehicle is loaded.


Summary


The 2008 Chevy Suburban can typically travel about 450–650 miles on a full tank, with exact figures depending on engine choice and drivetrain. A 31-gallon tank combined with mid-teens to high-teens MPG yields ranges in the 450–560 mile ballpark for most common configurations. Smart driving and regular maintenance can help you approach the upper end of that range.

Is 2008 a good year for Suburban?


Among the 304 owners who provided feedback on the 2008 Chevrolet Suburban 1500 for Kelley Blue Book, consumer sentiment is overwhelmingly positive, with 85% recommending the vehicle. As a whole, consumers found the vehicle's comfort and styling to be its strongest features and value to be its weakest.



What year to stay away from a Chevy Suburban?


Most of the problems in the Suburban are in older models. 2000, 2006, 2010, and 2017 models are great years for the Suburban. Engine problems are prevalent in 2008 models, and 2007 has the highest number of reported problems.



Can a Chevy Suburban last 300,000 miles?


Yes, a Chevy Suburban can last 300,000 miles or more with proper maintenance, and many owners have achieved this milestone. While achieving 300,000 miles requires consistent and diligent maintenance, it's a realistic goal for this vehicle, with some models exceeding this mileage significantly.
 
Factors for high mileage

  • Engine and transmission: The pre-AFM 5.3L V8 engines are known for their durability, and some owners have reported reaching over 400,000 miles on the original engine and transmission, though a transmission rebuild may eventually be necessary. 
  • Rust prevention: Rust is a major factor that can shorten a Suburban's lifespan, particularly in rust-belt areas. Addressing rust promptly is crucial. 
  • Proper maintenance: Following the manufacturer's maintenance schedule, including regular oil changes, fluid checks, and filter replacements, is essential for longevity. 
  • Addressing minor issues: Don't ignore minor problems like non-working dashboard lights or steering column chatter, as they can sometimes point to larger issues. 

How to maximize your Suburban's lifespan
  • Follow the maintenance schedule: Adhere strictly to the manufacturer's recommendations for service intervals. 
  • Perform regular oil changes: Change the engine oil and filter every 5,000–7,500 miles or more frequently in severe conditions. 
  • Check all fluids: Regularly monitor and maintain proper levels of coolant, transmission fluid, and other essential fluids. 
  • Inspect for rust: Pay close attention to the undercarriage and body for rust, and treat any spots immediately. 
  • Replace filters and spark plugs: Replace air, fuel, and cabin filters as recommended, and ensure spark plugs are replaced as needed. 
  • Maintain proper tire pressure: Properly inflated tires reduce engine strain. 
  • Avoid unnecessary weight: Keep your vehicle as light as possible to improve fuel economy and reduce strain on the engine. 



How many miles will a 2008 Suburban last?


A Chevrolet Suburban is expected to last between 200,000 and 250,000 miles with standard maintenance, though some for sale online push the 300,000 mile mark!


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.