What is the best Chevrolet TrailBlazer Ext for fuel economy?

The strongest year was 2002 at 16 mpg combined, against 14 mpg in 2003. That is a 2 mpg spread across the nameplate's history.

How much does a Chevrolet TrailBlazer Ext cost to fuel each year?

At 11,500 miles a year the 2007 model uses between 719 and 719 gallons, or $2,516 to $2,516 at $3.50 a gallon.

What does the Chevrolet TrailBlazer Ext emit?

EPA reports 555.4375 to 555.4375 grams of tailpipe CO2 per mile for the 2007 model year, or about 6.4 to 6.4 tons over a year of driving.

Chevrolet TrailBlazer Ext MPG by year — every rating on record

The Chevrolet TrailBlazer Ext has a combined EPA fuel economy rating for 6 model years, from 2002 to 2007. Across those years its best rated version returned 16 mpg (2002) and its thirstiest returned 14 mpg (2003). The EPA record holds 19 configurations for this nameplate, most recently a Sport Utility Vehicle - 4WD.

16best combined mpg (2002)

14worst combined mpg (2003)

16latest year best (2007)

19configurations on record

Year-by-year EPA ratings

Model year	Configurations	Best combined	Worst combined	Class rank that year	Drivetrains	Fuel	EPA class
2002	2	16 mpg	15 mpg	#33 of 54 (40th pct)	Rear-Wheel Drive, 4-Wheel or All-Wheel Drive	Regular	Sport Utility Vehicle - 2WD, Sport Utility Vehicle - 4WD
2003	4	16 mpg	14 mpg	#36 of 58 (39th pct)	Rear-Wheel Drive, 4-Wheel or All-Wheel Drive	Regular	Sport Utility Vehicle - 2WD, Sport Utility Vehicle - 4WD
2004	4	16 mpg	15 mpg	#36 of 60 (41th pct)	Rear-Wheel Drive, 4-Wheel or All-Wheel Drive	Regular	Sport Utility Vehicle - 2WD, Sport Utility Vehicle - 4WD
2005	4	15 mpg	14 mpg	#50 of 59 (16th pct)	Rear-Wheel Drive, 4-Wheel or All-Wheel Drive	Regular	Sport Utility Vehicle - 2WD, Sport Utility Vehicle - 4WD
2006	4	16 mpg	15 mpg	#43 of 62 (31th pct)	Rear-Wheel Drive, 4-Wheel or All-Wheel Drive	Regular	Sport Utility Vehicle - 2WD, Sport Utility Vehicle - 4WD
2007	1	16 mpg	16 mpg	#69 of 106 (35th pct)	4-Wheel or All-Wheel Drive	Regular	Sport Utility Vehicle - 4WD

Where it has stood in its class

Ranked against every other nameplate the EPA filed under the same class that year. The Chevrolet TrailBlazer Ext placed highest in 2002 at #33 of 54, and lowest in 2007 at #69 of 106. It spent 0 of its 6 ranked years in the top half of its class.

Every configuration on record

All 19 configurations EPA lists for this nameplate, newest first.

Year	Configuration	Engine detail	City	Highway	Combined	Gallons/yr	Barrels/yr	EPA fuel cost/yr	CO2 g/mi	GHG
2007	5.3L 8-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular	5.3L 8-cyl	14	19	16	718.8	18.6	$3,900	555.4375	n/a
2006	4.2L 6-cyl Rear-Wheel Drive Automatic 4-spd Regular	4.2L 6-cyl	14	19	15	766.7	19.8	$4,150	592.4666666666667	n/a
2006	5.3L 8-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular	5.3L 8-cyl	13	18	15	766.7	19.8	$4,150	592.4666666666667	n/a
2006	5.3L 8-cyl Rear-Wheel Drive Automatic 4-spd Regular	5.3L 8-cyl	14	19	16	718.8	18.6	$3,900	555.4375	n/a
2006	4.2L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular	4.2L 6-cyl	14	19	16	718.8	18.6	$3,900	555.4375	n/a
2005	4.2L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular	4.2L 6-cyl	12	17	14	821.4	21.3	$4,450	634.7857142857143	n/a
2005	4.2L 6-cyl Rear-Wheel Drive Automatic 4-spd Regular	4.2L 6-cyl	13	18	15	766.7	19.8	$4,150	592.4666666666667	n/a
2005	5.3L 8-cyl Rear-Wheel Drive Automatic 4-spd Regular	DOD	13	19	15	766.7	19.8	$4,150	592.4666666666667	n/a
2005	5.3L 8-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular	DOD	13	18	15	766.7	19.8	$4,150	592.4666666666667	n/a
2004	4.2L 6-cyl Rear-Wheel Drive Automatic 4-spd Regular	4.2L 6-cyl	13	18	15	766.7	19.8	$4,150	592.4666666666667	n/a
2004	5.3L 8-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular	5.3L 8-cyl	13	17	15	766.7	19.8	$4,150	592.4666666666667	n/a
2004	5.3L 8-cyl Rear-Wheel Drive Automatic 4-spd Regular	5.3L 8-cyl	14	18	16	718.8	18.6	$3,900	555.4375	n/a
2004	4.2L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular	4.2L 6-cyl	14	19	16	718.8	18.6	$3,900	555.4375	n/a
2003	5.3L 8-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular	LM7	13	16	14	821.4	21.3	$4,450	634.7857142857143	n/a
2003	5.3L 8-cyl Rear-Wheel Drive Automatic 4-spd Regular	LM7	14	18	15	766.7	19.8	$4,150	592.4666666666667	n/a
2003	4.2L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular	4.2L 6-cyl	13	19	15	766.7	19.8	$4,150	592.4666666666667	n/a
2003	4.2L 6-cyl Rear-Wheel Drive Automatic 4-spd Regular	4.2L 6-cyl	14	19	16	718.8	18.6	$3,900	555.4375	n/a
2002	4.2L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular	4.2L 6-cyl	14	19	15	766.7	19.8	$4,150	592.4666666666667	n/a
2002	4.2L 6-cyl Rear-Wheel Drive Automatic 4-spd Regular	4.2L 6-cyl	14	19	16	718.8	18.6	$3,900	555.4375	n/a

How the rating has moved between model years

Comparing the best-rated configuration of each year. 1 of 2 year-over-year steps improved the top rating.

Change	Best combined	Delta	Gallons a year at the newer rating
2004 → 2005	16 → 15 mpg	-1 mpg	767 gal
2005 → 2006	15 → 16 mpg	+1 mpg	719 gal

What TrailBlazer Ext fuel costs over a year

At the EPA's 11,500 miles a year, the 2007 Chevrolet TrailBlazer Ext burns 719 to 719 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.

Pump price	Most efficient	Thirstiest	Spread
$3.00/gal	$2,156	$2,156	$0
$3.50/gal	$2,516	$2,516	$0
$4.00/gal	$2,875	$2,875	$0

EPA’s own estimate for the 2007 model year is $3,900 to $3,900 a year in fuel, or $8,250 more than the average new vehicle over five years.

How it compares with other Sport Utility Vehicle - 4WD

Across the 219 nameplates EPA classifies as Sport Utility Vehicle - 4WD, the median best combined rating is 21 mpg. At 16 mpg the Chevrolet TrailBlazer Ext is 5 mpg below the median, which is worth about $599 a year at $3.50 a gallon.

All Sport Utility Vehicle - 4WD rankings — every nameplate in the class, best to worst.

Other Chevrolet nameplates

Every Chevrolet model compared → — all nameplates ranked by best combined rating, with what each one costs a year.