1990 · Full-Size Pickup · Gas

1990 GMC Sierra MPG & fuel economy

The 1990 GMC Sierra is a full-size pickup offered in 19 EPA-rated configurations. The most efficient version returns 18 MPG combined (16 city / 22 highway) on regular gasoline. Across the lineup, combined ratings range from 12 to 18 MPG. Efficiency is unchanged from the 1989 model. Among 26 full-size pickups rated for 1990, it ranks 7th for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $2,583 a year to fuel.

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Combined 18 MPG 16 MPG city · 22 MPG hwy
Driving range — not published for this model
Your fuel cost $2,583 15,000 mi/yr · $17.22 per 100 mi
Class rank, 1990 #7 of 26 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 1990 GMC Sierra's fuel average is 7.7 km/L (13.1 L/100 km), or 18 MPG combined: 6.8 km/L in the city and 9.4 km/L on the highway.

MPGkm/LL/100 km
City166.814.7
Highway229.410.7
Combined187.713.1

How it ranks among 1990 Full-Size Pickups

Full class ranking →
  1. 1Toyota Truck/T10023 MPG $2,022
  2. 2Mazda B Pickup22 MPG $2,114
  3. 3Dodge Dakota Pickup21 MPG $2,214
  4. 4Jeep Comanche Pickup21 MPG $2,214
  5. 5Mitsubishi Truck19 MPG $2,447
  6. 7GMC Sierra18 MPG $2,583
  7. 26Dodge W250 Pickup12 MPG $3,875
1990 SierraOther full-size pickupsClass median: $2,906/yr

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

Sierra MPG across model years

Full history →

19 EPA-rated configurations

ConfigurationTypeCityHwyCombinedRangeYour cost / yr
RWD · 4.3L 6-cyl · 5-speed manual
Sierra 1500 2WD		 Gas 16 MPG 22 MPG 18 MPG — $2,583
RWD · 4.3L 6-cyl · 3-speed automatic
Sierra 1500 2WD		 Gas 16 MPG 19 MPG 17 MPG — $2,735
RWD · 4.3L 6-cyl · 4-speed manual
Sierra 1500 2WD		 Gas 16 MPG 19 MPG 17 MPG — $2,735
4WD/AWD · 4.3L 6-cyl · 4-speed automatic
Sierra 1500 4WD		 Gas 15 MPG 18 MPG 16 MPG — $2,906
4WD/AWD · 4.3L 6-cyl · 5-speed manual
Sierra 1500 4WD		 Gas 15 MPG 19 MPG 16 MPG — $2,906
RWD · 5.0L 8-cyl · 4-speed automatic
Sierra 1500 2WD		 Gas 14 MPG 18 MPG 15 MPG — $3,100
RWD · 5.0L 8-cyl · 5-speed manual
Sierra 1500 2WD		 Gas 14 MPG 19 MPG 15 MPG — $3,100
RWD · 5.7L 8-cyl · 4-speed automatic
Sierra 1500 2WD		 Gas 14 MPG 18 MPG 15 MPG — $3,100
4WD/AWD · 4.3L 6-cyl · 3-speed automatic
Sierra 1500 4WD		 Gas 14 MPG 16 MPG 15 MPG — $3,100
4WD/AWD · 4.3L 6-cyl · 4-speed manual
Sierra 1500 4WD		 Gas 14 MPG 16 MPG 15 MPG — $3,100
RWD · 5.0L 8-cyl · 3-speed automatic
Sierra 1500 2WD		 Gas 14 MPG 15 MPG 14 MPG — $3,321
RWD · 5.7L 8-cyl · 5-speed manual
Sierra 1500 2WD		 Gas 12 MPG 17 MPG 14 MPG — $3,321
4WD/AWD · 5.0L 8-cyl · 4-speed automatic
Sierra 1500 4WD		 Gas 13 MPG 17 MPG 14 MPG — $3,321
4WD/AWD · 5.0L 8-cyl · 5-speed manual
Sierra 1500 4WD		 Gas 12 MPG 17 MPG 14 MPG — $3,321
4WD/AWD · 5.0L 8-cyl · 3-speed automatic
Sierra 1500 4WD		 Gas 12 MPG 14 MPG 13 MPG — $3,577
4WD/AWD · 5.7L 8-cyl · 4-speed automatic
Sierra 1500 4WD		 Gas 12 MPG 16 MPG 13 MPG — $3,577
4WD/AWD · 5.7L 8-cyl · 5-speed manual
Sierra 1500 4WD		 Gas 11 MPG 16 MPG 13 MPG — $3,577
RWD · 5.7L 8-cyl · 4-speed manual
Sierra 1500 2WD		 Gas 11 MPG 13 MPG 12 MPG — $3,875
4WD/AWD · 5.7L 8-cyl · 4-speed manual
Sierra 1500 4WD		 Gas 11 MPG 13 MPG 12 MPG — $3,875

Specs (most efficient configuration)

Fuel
Regular gasoline
Engine / motor
4.3L 6-cyl
Transmission
5-speed manual
Drivetrain
RWD
Tailpipe CO₂
494 g/mi

1990 GMC Sierra vs. rivals

vs Chevrolet C1500 Pickup 18 MPG · $2,583/yr Same fuel cost vs Dodge Power Ram 50 Pickup 18 MPG · $2,583/yr Same fuel cost vs Chevrolet C2500 Pickup 18 MPG · $2,583/yr Same fuel cost vs Mitsubishi Truck 19 MPG · $2,447/yr Truck saves $136/yr vs Dodge D100/D150 Pickup 16 MPG · $2,906/yr Sierra saves $323/yr vs Ford F150 16 MPG · $2,906/yr Sierra saves $323/yr vs Dodge Dakota Pickup 21 MPG · $2,214/yr Dakota Pickup saves $369/yr vs Jeep Comanche Pickup 21 MPG · $2,214/yr Comanche Pickup saves $369/yr vs Mazda B Pickup 22 MPG · $2,114/yr B Pickup saves $470/yr vs Toyota Truck/T100 23 MPG · $2,022/yr Truck/T100 saves $562/yr vs GMC Sierra Diesel 18 MPG · $3,083/yr Sierra saves $500/yr

Compare the 1990 Sierra

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

Same year, other powertrains: 1990 GMC Sierra Diesel (18 MPG)

Frequently asked questions

What is the gas mileage of the 1990 GMC Sierra?

Up to 18 MPG combined (16 city / 22 highway); ratings range from 12 to 18 MPG depending on configuration.

What fuel does the 1990 GMC Sierra use?

Regular gasoline.

What is the fuel average in km/L for the 1990 GMC Sierra?

The 1990 GMC Sierra's fuel average is 7.7 km/L (13.1 L/100 km), or 18 MPG combined: 6.8 km/L in the city and 9.4 km/L on the highway.

How much does it cost to fuel the 1990 GMC Sierra per year?

About $2,583 at 15,000 miles a year with $3.10/gal regular gas, or $17.22 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.

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