2015 Chevrolet Suburban MPG and Fuel Cost

The 2015 Chevrolet Suburban is rated 18 mpg combined in every gas version EPA tested.

EPA fuel economy

2015 Chevrolet Suburban · 4 EPA-tested versions

Best EPA rating

18MPG combined

15 city 22 highway

$3,700 a year to fuel

Fuel economy score4/10

5.3L 8-cyl · 4WD · 6-speed automatic · Flex-fuel (E85)

Best version costs $6,500 more in fuel over 5 years vs the average new vehicle (EPA)

Fuel cost: 15,000 miles a year at EPA's $4.47 a gallon (regular gas).

Data: US EPA, fueleconomy.govUpdated Oct 2, 2026

At EPA's price assumptions, fuel costs about $3,700 a year. Compared with 2014, the best gas version is up 1 mpg.

One of the Suburban years to avoid

The 2015 drew 104 owner complaints in its first three years, against about 32 for a typical Suburban year: 3.3 times as many.

Years to avoid: 2015 and 2023. Based on owner complaints, not adjusted for sales.

Every Suburban year ranked The 2015 Suburban's recalls and problems

Every 2015 Suburban version

EPA's ratings for each version it tested. Fuel cost is EPA's estimate for 15,000 miles a year at its current prices.

Version	Combined	City / Hwy	Fuel / year
5.3L 8-cyl · 4WD · 6-speed automatic EPA listing: Suburban K1500 4WD	18 mpg	15 / 22	$3,700
5.3L 8-cyl · 4WD · 6-speed automatic · Flex-fuel (E85) Best EPA listing: Suburban K1500 4WD · Flex-fuel (E85)	18 mpg	15 / 22	$3,700
5.3L 8-cyl · RWD · 6-speed automatic EPA listing: Suburban C1500 2WD	18 mpg	16 / 23	$3,700
5.3L 8-cyl · RWD · 6-speed automatic · Flex-fuel (E85) EPA listing: Suburban C1500 2WD · Flex-fuel (E85)	18 mpg	16 / 23	$3,700

Fuel cost at your prices

EPA's annual cost uses 15,000 miles a year, 55% city driving and its current prices: $4.47 a gallon for regular gas. Change the numbers to match your driving.

Version	Per year	Per month	5 years
5.3L 8-cyl · 4WD · 6-speed automatic · Flex-fuel (E85)	$3,725	$310	$18,625
5.3L 8-cyl · 4WD · 6-speed automatic	$3,725	$310	$18,625
5.3L 8-cyl · RWD · 6-speed automatic · Flex-fuel (E85)	$3,725	$310	$18,625
5.3L 8-cyl · RWD · 6-speed automatic	$3,725	$310	$18,625

At the default settings the results match EPA's annual cost before EPA rounds it to the nearest $50.

Chevrolet Suburban MPG by model year

The best-rated version in each model year; the highlighted year is this page. Gas: 17 to 19 mpg (every year from 2010 to 2026); highest in 2016. Diesel: 23 mpg (2021 to 2026).

Best gas version
Best diesel version

2015: gas 18 mpg · diesel not offered

Show as a table

Chevrolet Suburban best combined mpg by model year
Model year	Best gas version	Best diesel version
2010	17	–
2011	17	–
2012	17	–
2013	17	–
2014	17	–
2015	18	–
2016	19	–
2017	19	–
2018	19	–
2019	18	–
2020	18	–
2021	18	23
2022	17	23
2023	17	23
2024	17	23
2025	17	23
2026	17	23

Every Suburban year's ratings in one table

How the 2015 Suburban compares

2015 full-size SUVs covered on this site, ranked by their best combined rating. Fuel cost is for each model's cheapest version to run, at EPA's prices.

2015 model	Best combined	Best gas	Fuel / year
Chevrolet Tahoe Best: gas	18 mpg	18 mpg	$3,700
Chevrolet Suburban This page Best: gas	18 mpg	18 mpg	$3,700
GMC Yukon Best: gas	18 mpg	18 mpg	$3,700
Ford Expedition Best: gas	18 mpg	18 mpg	$3,700
Toyota Sequoia Best: gas	15 mpg	15 mpg	$4,450

Chevrolet Tahoe vs Chevrolet SuburbanMPG, fuel cost, recalls and crash tests side by side

2015 Suburban recalls and complaints

NHTSA lists 11 safety recalls and 429 owner complaints for the 2015 Suburban.

Owners most often describe brake failure (53 complaints, 12%), then shaking or vibration (35). NHTSA's overall crash rating: 4 stars.

See the 2015 Suburban recalls and problems

Questions

Does the 2015 Chevrolet Suburban need premium gas?

No. EPA lists every 2015 Chevrolet Suburban version on regular gasoline.

How does the 2015 Suburban's MPG compare with the 2014?

For 2015, the best gas version is rated 18 mpg, up 1 from 17.

Sources and method

US EPA and Department of Energy fuel economy data (fueleconomy.gov), file dated Sep 29, 2026.
EPA fuel price assumptions: regular $4.47, midgrade $5.07, premium $5.48, diesel $6.38 a gallon; electricity $0.15 per kWh.
Recall and complaint counts: NHTSA recall file dated Oct 2, 2026 and complaint file dated Oct 2, 2026.

Ratings are EPA estimates. Real-world mileage depends on how, where and in what weather you drive. How we build these pages. Spotted an error? Tell us.