EPA Vehicle Specs

1991 GMC Sierra Specs, MPG & Trims

EPA fuel-economy data and specifications for the 1991 GMC Sierra (12–20 MPG combined) across 27 listed configurations.

Overview

Body class
Standard Pickup Trucks 4WD, Standard Pickup Trucks
Drive
4-Wheel or All-Wheel Drive, Rear-Wheel Drive
Engine
8-cyl, 6.2 L; 6-cyl, 4.3 L; 8-cyl, 5.0 L; 8-cyl, 5.7 L
Fuel type
Diesel, Regular Gasoline
Combined MPG
12–20 MPG
Annual fuel cost
$3,950–$6,000
Configurations
27

MPG & fuel economy

City, highway and combined values below are EPA estimates. Where a powertrain has several configurations, the table shows the lowest–highest reported value. Electric configurations use MPGe.

EPA city, highway and combined ratings by powertrain for the 1991 GMC Sierra. Electric configurations are rated in MPGe.
PowertrainCityHighwayCombinedAnnual fuel costCO2
8-cyl 6.2 L · Diesel · 4-Wheel or All-Wheel Drive15–1717–2116–18$5,300–$6,000—
8-cyl 6.2 L · Diesel · Rear-Wheel Drive16–1819–2318–20$4,800–$5,300—
6-cyl 4.3 L · Regular Gasoline · 4-Wheel or All-Wheel Drive14–1516–1915–16$4,200–$4,450—
8-cyl 5.0 L · Regular Gasoline · 4-Wheel or All-Wheel Drive1216–1714$4,800—
8-cyl 5.7 L · Regular Gasoline · 4-Wheel or All-Wheel Drive1113–1612–13$5,150–$5,600—
6-cyl 4.3 L · Regular Gasoline · Rear-Wheel Drive15–1619–2117$3,950—
8-cyl 5.0 L · Regular Gasoline · Rear-Wheel Drive1417–1915–16$4,200–$4,450—
8-cyl 5.7 L · Regular Gasoline · Rear-Wheel Drive12–1415–1813–15$4,450–$5,150—

Configurations & engine comparison

Each row is one configuration/engine combination reported by the EPA for this model year. Missing EPA values are shown as —.

Every EPA-listed configuration for the 1991 GMC Sierra (27 rows). "Configuration" is the EPA configuration/engine name.
Configuration / engineDriveTransmissionCyl.Displ. (L)Fuel typeCityHwyComb.Annual cost
Sierra 1500 2WDRear-Wheel DriveAutomatic 4-spd64.3Regular Gasoline152017$3,950
Sierra 1500 2WDRear-Wheel DriveAutomatic 4-spd85.0Regular Gasoline141715$4,450
Sierra 1500 2WDRear-Wheel DriveAutomatic 4-spd85.7Regular Gasoline141815$4,450
Sierra 1500 2WDRear-Wheel DriveAutomatic 4-spd86.2Diesel162218$5,300
Sierra 1500 2WDRear-Wheel DriveManual 4-spd64.3Regular Gasoline161917$3,950
Sierra 1500 2WDRear-Wheel DriveManual 4-spd85.7Regular Gasoline121513$5,150
Sierra 1500 2WDRear-Wheel DriveManual 4-spd86.2Diesel171918$5,300
Sierra 1500 2WDRear-Wheel DriveManual 5-spd64.3Regular Gasoline152117$3,950
Sierra 1500 2WDRear-Wheel DriveManual 5-spd64.3Regular Gasoline152017$3,950
Sierra 1500 2WDRear-Wheel DriveManual 5-spd85.0Regular Gasoline141916$4,200
Sierra 1500 2WDRear-Wheel DriveManual 5-spd85.7Regular Gasoline121814$4,800
Sierra 1500 2WDRear-Wheel DriveManual 5-spd85.7Regular Gasoline121714$4,800
Sierra 1500 2WDRear-Wheel DriveManual 5-spd86.2Diesel182320$4,800
Sierra 1500 4WD4-Wheel or All-Wheel DriveAutomatic 4-spd64.3Regular Gasoline141816$4,200
Sierra 1500 4WD4-Wheel or All-Wheel DriveAutomatic 4-spd85.0Regular Gasoline121614$4,800
Sierra 1500 4WD4-Wheel or All-Wheel DriveAutomatic 4-spd85.7Regular Gasoline111513$5,150
Sierra 1500 4WD4-Wheel or All-Wheel DriveAutomatic 4-spd86.2Diesel151916$6,000
Sierra 1500 4WD4-Wheel or All-Wheel DriveManual 4-spd64.3Regular Gasoline141615$4,450
Sierra 1500 4WD4-Wheel or All-Wheel DriveManual 4-spd85.7Regular Gasoline111312$5,600
Sierra 1500 4WD4-Wheel or All-Wheel DriveManual 4-spd86.2Diesel151716$6,000
Sierra 1500 4WD4-Wheel or All-Wheel DriveManual 5-spd86.2Diesel162017$5,650
Sierra 1500 4WD4-Wheel or All-Wheel DriveManual 5-spd64.3Regular Gasoline151916$4,200
Sierra 1500 4WD4-Wheel or All-Wheel DriveManual 5-spd64.3Regular Gasoline151816$4,200
Sierra 1500 4WD4-Wheel or All-Wheel DriveManual 5-spd85.0Regular Gasoline121714$4,800
Sierra 1500 4WD4-Wheel or All-Wheel DriveManual 5-spd85.7Regular Gasoline111613$5,150
Sierra 1500 4WD4-Wheel or All-Wheel DriveManual 5-spd85.7Regular Gasoline111513$5,150
Sierra 2500 4WD4-Wheel or All-Wheel DriveManual 5-spd86.2Diesel172118$5,300

Frequently asked questions

What is the combined MPG of the 1991 GMC Sierra?

According to EPA data, the 1991 GMC Sierra is rated at 12–20 MPG combined for its conventional-fuel configurations.

How many cylinders does the 1991 GMC Sierra have?

The EPA data lists 6 and 8 cylinders across its configurations.

What fuel type does the 1991 GMC Sierra use?

It is offered with Diesel and Regular Gasoline.

What is the annual fuel cost of the 1991 GMC Sierra?

The EPA estimates annual fuel costs ranging from $3,950 to $6,000.

Other Sierra years

20262025202420232022202120202019201820172016201520142013201220112010200920082007200620052004200320022001200019991998199719961995199419931992199119901989

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