1991 · Full-Size Pickup · Gas

1991 GMC K2500 Sierra MPG & fuel economy

The 1991 GMC K2500 Sierra is a full-size pickup offered in 10 EPA-rated configurations. The most efficient version returns 16 MPG combined (15 city / 18 highway) on regular gasoline. Across the lineup, combined ratings range from 12 to 16 MPG. Efficiency is unchanged from the 1990 model. Among 27 full-size pickups rated for 1991, it ranks 19th for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $2,906 a year to fuel.

Compare
Combined 16 MPG 15 MPG city · 18 MPG hwy
Driving range — not published for this model
Your fuel cost $2,906 15,000 mi/yr · $19.38 per 100 mi
Class rank, 1991 #19 of 27 Full-Size Pickups by fuel cost

What will it cost you?

Your mileage and prices are saved and used across the site.

Fuel average

The 1991 GMC K2500 Sierra's fuel average is 6.8 km/L (14.7 L/100 km), or 16 MPG combined: 6.4 km/L in the city and 7.7 km/L on the highway.

MPGkm/LL/100 km
City156.415.7
Highway187.713.1
Combined166.814.7

How it ranks among 1991 Full-Size Pickups

Full class ranking →
  1. 1Mazda B Pickup22 MPG $2,114
  2. 2Dodge Dakota Pickup21 MPG $2,214
  3. 3Toyota Truck/T10021 MPG $2,214
  4. 4Isuzu Pickup20 MPG $2,325
  5. 5Mitsubishi Truck19 MPG $2,447
  6. 19GMC K2500 Sierra16 MPG $2,906
  7. 27Dodge W250 Pickup11 MPG $4,227
1991 K2500 SierraOther full-size pickupsClass median: $2,906/yr

Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.

K2500 Sierra MPG across model years

Full history →

10 EPA-rated configurations

ConfigurationTypeCityHwyCombinedRangeYour cost / yr
4WD/AWD · 4.3L 6-cyl · 5-speed manual
K2500 Sierra 4WD		 Gas 15 MPG 18 MPG 16 MPG — $2,906
4WD/AWD · 4.3L 6-cyl · 5-speed manual
K2500 Sierra 4WD		 Gas 15 MPG 17 MPG 16 MPG — $2,906
4WD/AWD · 4.3L 6-cyl · 4-speed automatic
K2500 Sierra 4WD		 Gas 14 MPG 18 MPG 15 MPG — $3,100
4WD/AWD · 4.3L 6-cyl · 4-speed manual
K2500 Sierra 4WD		 Gas 14 MPG 16 MPG 15 MPG — $3,100
4WD/AWD · 5.0L 8-cyl · 4-speed automatic
K2500 Sierra 4WD		 Gas 12 MPG 16 MPG 14 MPG — $3,321
4WD/AWD · 5.0L 8-cyl · 5-speed manual
K2500 Sierra 4WD		 Gas 12 MPG 17 MPG 14 MPG — $3,321
4WD/AWD · 5.7L 8-cyl · 4-speed automatic
K2500 Sierra 4WD		 Gas 11 MPG 15 MPG 13 MPG — $3,577
4WD/AWD · 5.7L 8-cyl · 5-speed manual
K2500 Sierra 4WD		 Gas 11 MPG 15 MPG 13 MPG — $3,577
4WD/AWD · 5.7L 8-cyl · 4-speed manual
K2500 Sierra 4WD		 Gas 11 MPG 13 MPG 12 MPG — $3,875
4WD/AWD · 5.7L 8-cyl · 5-speed manual
K2500 Sierra 4WD		 Gas 11 MPG 15 MPG 12 MPG — $3,875

Specs (most efficient configuration)

Fuel
Regular gasoline
Engine / motor
4.3L 6-cyl
Transmission
5-speed manual
Drivetrain
4WD/AWD
Tailpipe CO₂
555 g/mi

1991 GMC K2500 Sierra vs. rivals

vs Dodge D100/D150 Pickup 16 MPG · $2,906/yr Same fuel cost vs Ford F150 16 MPG · $2,906/yr Same fuel cost vs Ford F250 16 MPG · $2,906/yr Same fuel cost vs Chevrolet K1500 Pickup 16 MPG · $2,906/yr Same fuel cost vs Chevrolet K2500 Pickup 16 MPG · $2,906/yr Same fuel cost vs Chevrolet C2500 Pickup Diesel 19 MPG · $2,921/yr K2500 Sierra saves $15/yr vs Chevrolet K2500 Pickup Diesel 18 MPG · $3,083/yr K2500 Sierra saves $177/yr vs GMC K2500 Sierra Diesel 17 MPG · $3,265/yr K2500 Sierra saves $358/yr

Compare the 1991 K2500 Sierra

With any other car from any year, including other K2500 Sierra model years. Type a year to jump, e.g. "2015 Accord".

Same year, other powertrains: 1991 GMC K2500 Sierra Diesel (17 MPG)

Frequently asked questions

What is the gas mileage of the 1991 GMC K2500 Sierra?

Up to 16 MPG combined (15 city / 18 highway); ratings range from 12 to 16 MPG depending on configuration.

What fuel does the 1991 GMC K2500 Sierra use?

Regular gasoline.

What is the fuel average in km/L for the 1991 GMC K2500 Sierra?

The 1991 GMC K2500 Sierra's fuel average is 6.8 km/L (14.7 L/100 km), or 16 MPG combined: 6.4 km/L in the city and 7.7 km/L on the highway.

How much does it cost to fuel the 1991 GMC K2500 Sierra per year?

About $2,906 at 15,000 miles a year with $3.10/gal regular gas, or $19.38 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.

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