How many miles per gallon does a 2006 Chevy Trailblazer get?

Typically, a 2006 TrailBlazer delivers fuel economy in the mid-teens to low-20s, depending on the engine and drivetrain. Highway mileage is generally higher than city mileage, with variations by configuration.

The figures below reflect common EPA estimates for the 2006 TrailBlazer lineup and show how engine choice and 2WD versus 4WD affect fuel efficiency. Real-world results can vary based on load, terrain, maintenance, and driving habits.

Details below summarize EPA-estimated fuel economy by configuration. Before the list, note that these numbers are averages and individual results will vary.

• 4.2L inline-6, 2WD: approximately 16 mpg city / 22 mpg highway; combined around 19 mpg.


• 4.2L inline-6, 4WD: approximately 15 mpg city / 21 mpg highway; combined around 18 mpg.


• 5.3L V8, 2WD: approximately 15 mpg city / 21 mpg highway; combined around 18 mpg.


• 5.3L V8, 4WD: approximately 14 mpg city / 19 mpg highway; combined around 16 mpg.

These figures illustrate how choosing a more powerful V8 and adding four-wheel drive tends to reduce fuel economy, especially in city conditions, while the 4.2L inline-6 generally offers better highway efficiency.

Real-world considerations

EPA estimates provide a baseline, but real-world mileage depends on several factors beyond engine and drivetrain. Weight from cargo and passengers, towing, terrain (hills and rough roads), climate, and maintenance can all shift actual miles per gallon.

Other considerations include transmission calibration, tire condition and pressure, and driving style. Aggressive acceleration, frequent braking, and excess idling typically lower MPG, while steady speeds on highways and properly inflated tires help maximize efficiency.

How to maximize mpg on a 2006 TrailBlazer

To improve efficiency, maintain regular service, keep tires inflated to the recommended pressure, remove unnecessary payload, anticipate traffic to minimize braking, and choose smoother, longer trips when possible. If you regularly tow or carry heavy loads, expect lower mpg compared with unloaded conditions.

Summary

In summary, the 2006 Chevy TrailBlazer shows a range of fuel economy tied to engine and drivetrain: roughly 16–18 mpg combined for the V8 with 4WD, about 18–19 mpg combined for the I6 with 2WD, and around 16–18 mpg combined for other configurations. Real-world results will vary, but these figures provide a solid baseline for budgeting fuel costs or comparing with other SUVs of the era.

Is a 2006 Chevy Trailblazer good on gas?

Is the Chevrolet Trailblazer fuel efficient? All trim levels of the 2006 Trailblazer get 16 MPG, with 14 MPG in the city and 20 MPG on the highway.

How many gallons does a 2006 Chevy Trailblazer hold?

A standard 2006 Chevy Trailblazer holds 22 gallons, while the extended (EXT) model holds 25 gallons. The fuel capacity varies depending on the specific body style of the vehicle.
 

• Standard Trailblazer: 22 gallons
• Trailblazer EXT (Extended Model): 25 gallons

What are common problems with a 2006 Chevy Trailblazer?

Common problems with the 2006 Chevy Trailblazer include a failed fuel level sensor, a broken AC blower resistor, and issues with the engine like rough idle or misfires due to worn valve seats. Other frequent complaints involve steering and suspension problems, electrical glitches, and a cracked exhaust manifold.
 
You can watch this video to learn about common problems with the Chevy Trailblazer from 2002 to 2009, including issues with the fuel pump and ignition coils: 59sHOWSTUFFINMYCARWORKSYouTube · Mar 16, 2022
Engine and performance

• Fuel level sensor failure: Causes the fuel gauge to be inaccurate. 
• Engine misfires: Often linked to worn valve seats or sticking camshaft actuators. 
• Rough idle and vibration: Can be caused by worn valve seats or other engine issues, especially when the vehicle is stopped in drive. 
• Cracked exhaust manifold: Can create a loud noise. 
• Cooling fan clutch failure: May cause noise and trigger the "check engine" light. 
• Poor fuel economy: The vehicle is known for its low MPG. 

Electrical and accessories

• AC blower resistor failure: Prevents the AC blower from working, according to RepairPal and Burlington Chevrolet. 
• Multi-system electrical failure: Can affect power windows, door locks, and the radio, notes RepairPal. 
• Rear light issues: Often caused by a failed light socket plate. 
• CD player failure: The CD player in the radio may stop working. 
• Check engine light: Can be triggered by a simple issue like a loose gas cap. 

Steering and suspension 

• Loose steering and poor control: Symptoms can include a feeling of looseness, especially when turning at low speeds. 
• Steering groan/shudder: A groan or shudder may be heard during low-speed turns. 
• Worn suspension components: This is a common problem area, notes Consumer Reports and can include tie rods, ball joints, and wheel bearings. 

Other common issues

• Shifter stuck in park: The gear shift may become stuck, making it impossible to change gears.
• Air compressor failure: The air compressor for the rear air springs may fail. 

This video demonstrates how to diagnose and fix transmission shifter problems in a 2006 Chevy Trailblazer: 1mcubmancanYouTube · Oct 23, 2020

How many miles will a 2006 Trailblazer last?

A 2006 Chevy Trailblazer's life expectancy can be around 135,000 miles, but with proper maintenance, many owners report reaching 200,000 miles or more. Longevity depends on factors like regular maintenance, driving habits, and addressing known issues with the engine, transmission, and suspension to prevent more significant problems.
 
Factors affecting life expectancy

• Maintenance: Consistent oil changes and other preventative maintenance are crucial for the engine to last. 
• Driving habits: A vehicle used for highway miles will generally last longer than one used for constant city driving. 
• Repairs: Addressing issues promptly can prevent small problems from becoming major, costly repairs. 

Common issues to watch for

• Engine: While the 4.2L inline-six engine is considered robust, intake gasket issues can lead to bearing damage if not addressed. 
• Transmission: Some Trailblazers have experienced transmission issues, particularly with the 4L70 transmission. 
• Suspension and steering: Suspension components like shocks, struts, and ball joints can wear out, especially after high mileage. 
• Electrical components: Be aware of potential issues with accessories and sensors.