1998 GMC Sierra 1500
Change

At a glance

1998 GMC Sierra 1500 reference

Use the summary to orient yourself, then open the exact engine, drivetrain and source record below.

Combined MPG13-18EPA range
EPA configurations18Engine and drivetrain records
Model campaigns4NHTSA records
NHTSA safetyNot ratedNo rating in record

1998 GMC Sierra 1500 MPG by engine and drivetrain

EPA combined ratings run from 13 to 18 mpg across 18 configurations. Match the engine, transmission and drivetrain in the table before comparing fuel costs.

EPA fuel economy, annual fuel cost and tailpipe CO₂
Engine / transmissionCityHighwayCombinedAnnual fuelCO₂
4.3L 6-cylinderAutomatic 4-spd · Rear-Wheel Drive · Regular Gasoline14 mpg19 mpg16 mpg$3,850555.4375 g/mi
4.3L 6-cylinderManual 5-spd · Rear-Wheel Drive · Regular Gasoline16 mpg21 mpg18 mpg$3,400493.72222222222223 g/mi
5.0L 8-cylinderAutomatic 4-spd · Rear-Wheel Drive · Regular Gasoline14 mpg18 mpg15 mpg$4,100592.4666666666667 g/mi
5.0L 8-cylinderManual 5-spd · Rear-Wheel Drive · Regular Gasoline13 mpg18 mpg15 mpg$4,100592.4666666666667 g/mi
5.7L 8-cylinderAutomatic 4-spd · Rear-Wheel Drive · Regular Gasoline13 mpg17 mpg14 mpg$4,400634.7857142857143 g/mi
5.7L 8-cylinderManual 5-spd · Rear-Wheel Drive · Regular Gasoline12 mpg18 mpg14 mpg$4,400634.7857142857143 g/mi
5.0L 8-cylinderAutomatic 4-spd · Rear-Wheel Drive · Regular Gasoline14 mpg18 mpg15 mpg$4,100592.4666666666667 g/mi
5.0L 8-cylinderManual 5-spd · Rear-Wheel Drive · Regular Gasoline13 mpg17 mpg15 mpg$4,100592.4666666666667 g/mi
5.7L 8-cylinderAutomatic 4-spd · Rear-Wheel Drive · Regular Gasoline13 mpg17 mpg14 mpg$4,400634.7857142857143 g/mi
5.7L 8-cylinderManual 5-spd · Rear-Wheel Drive · Regular Gasoline12 mpg18 mpg14 mpg$4,400634.7857142857143 g/mi
6.5L 8-cylinder turboAutomatic 4-spd · Rear-Wheel Drive · Diesel13 mpg17 mpg15 mpg$5,300678.6666666666666 g/mi
4.3L 6-cylinderAutomatic 4-spd · 4-Wheel or All-Wheel Drive · Regular Gasoline14 mpg18 mpg16 mpg$3,850555.4375 g/mi
4.3L 6-cylinderManual 5-spd · 4-Wheel or All-Wheel Drive · Regular Gasoline14 mpg19 mpg16 mpg$3,850555.4375 g/mi
5.0L 8-cylinderAutomatic 4-spd · 4-Wheel or All-Wheel Drive · Regular Gasoline12 mpg17 mpg14 mpg$4,400634.7857142857143 g/mi
5.0L 8-cylinderManual 5-spd · 4-Wheel or All-Wheel Drive · Regular Gasoline12 mpg17 mpg14 mpg$4,400634.7857142857143 g/mi
5.7L 8-cylinderAutomatic 4-spd · 4-Wheel or All-Wheel Drive · Regular Gasoline12 mpg16 mpg13 mpg$4,750683.6153846153846 g/mi
5.7L 8-cylinderManual 5-spd · 4-Wheel or All-Wheel Drive · Regular Gasoline11 mpg16 mpg13 mpg$4,750683.6153846153846 g/mi
6.5L 8-cylinder turboAutomatic 4-spd · 4-Wheel or All-Wheel Drive · Diesel13 mpg17 mpg15 mpg$5,300678.6666666666666 g/mi
U.S. EPA FuelEconomy.gov vehicle dataset Accessed 2026-09-05

Annual fuel figures are the EPA snapshot at the source date. The calculator below uses the separately dated fuel-price record and your inputs, so the estimates may differ.

1998 GMC Sierra 1500 annual fuel cost calculator

Start with the combined MPG for 4.3L 6-cylinder, Automatic 4-spd, Rear-Wheel Drive. Replace it with your measured gas mileage and local pump price for a personal budget.

Estimated result$3,155.25

Formula annual miles ÷ MPG × gasoline price

Fuel cost per mile equals gasoline price divided by MPG. Multiply by your annual mileage for a yearly fuel budget. Add maintenance to estimate cost per mile.

1998 GMC Sierra 1500 recall campaigns

NHTSA returned 4 model-level campaign records as of 2026-09-04. A campaign record does not establish whether your vehicle is affected or whether a repair is outstanding. Check your VIN through NHTSA.

EQUIPMENT · 07E088000

CERTAIN HONEYWELL FRAM RACING BRAND HP4 AND HP8 OIL FILTERS THAT WERE MANUFACTURED FROM MAY 25, 2006, THROUGH SEPTEMBER 14, 2007, AND SOLD FOR USE AS REPLACEMENT EQUIPMENT FOR VEHICLES LIST ABOVE. THE AFFECTED FILTERS ARE MARKED WITH A DATE CODE A61451 THROUGH A72571 SEQUENTIALLY. THE DATE CODE AND PART NUMBER APPEAR ON THE FILTER HOUSING. FRAM RACING HP4 AND HP8 OIL FILTERS NOT BEARING A DATE CODE IN THIS RANGE ARE NOT AFFECTED BY THIS RECALL. THE GASKET OF THE OIL FILTER BECOMES MORE PLIABLE UNDER HIGH TEMPERATURES AND PRESSURES.

Remedy: HONEYWELL WILL REPLACE THE AFFECTED OIL FILTERS FREE OF CHARGE. THE RECALL BEGAN DURING NOVEMBER 2007. OWNERS CAN CONTACT FRAM CUSTOMER SERVICE TOLL-FREE AT 1-800-890-2075.

FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY · 98V187000

VEHICLE DESCRIPTION: CREW CAB PICKUP TRUCKS. THE FRONT, INNER CORNER OF THE FUEL TANK CAN CONTACT THE BODY SILL EITHER INTERMITTENTLY OR CONSTANTLY. THIS MOVEMENT CAN CAUSE A DISCERNIBLE NOISE AND, OVER TIME, CAN WEAR A HOLE IN OR CRACK THE FUEL TANK AT POINT OF CONTACT.

Remedy: DEALERS WILL INSPECT THE FUEL TANK FOR WEAR AND, EITHER INSTALL A SPACER BETWEEN THE FUEL TANK AND THE FRONT CROSSMEMBER, OR IF NECESSARY, REPLACE THE FUEL TANK.

FUEL SYSTEM, GASOLINE · 06E043000

CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURED FROM OCTOBER 18, 2005, THROUGH MARCH 21, 2006, SOLD FOR USE ON THE VEHICLES LISTED ABOVE AND ON CERTAIN SCHOOL BUSES. (TO SEE THE SCHOOL BUS ENGINE SIZES, CLICK ON "DOCUMENT SEARCH" AND THEN "BUS APPLICATIONS"). THE CONNECTOR ON THE FUEL FILTER WAS NOT MANUFACTURED TO HONEYWELL'S SPECIFICATION. AS A RESULT, THE O-RING MAY NOT SEAT CORRECTLY ON THE FUEL LINE.

Remedy: HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 18, 2006. OWNERS MAY CONTACT FRAM CUSTOMER SERVICE AT 1-800-890-2075 (OPTION 1).

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:ROTOR · 98V033000

VEHICLE DESCRIPTION: LIGHT DUTY PICKUP TRUCKS AND MULTI-PURPOSE PASSENGER VEHICLES. ONE OR BOTH FRONT BRAKE ROTOR/HUBS WERE BUILT WITH AN OUT-OF-SPECIFICATION GRAY IRON THAT CAN FAIL DURING THE LIFE OF THE VEHICLE.

Remedy: DEALERS WILL INSPECT THE ROTORS FOR A CORE DATE OF "287" AND, IF FOUND, REPLACE THE ROTOR.

NHTSA Recalls API Accessed 2026-09-04

Decode a VIN and open the official recall check

1998 GMC Sierra 1500 NHTSA safety ratings

No rating is published in the stored record for this year and model.

NHTSA 5-Star Safety Ratings API Accessed 2026-09-05

Frequently asked questions

What is the 1998 GMC Sierra 1500 gas mileage?

EPA combined ratings run from 13 to 18 mpg across 18 configurations. Match the engine, transmission and drivetrain in the table before comparing fuel costs.

Are these real-world MPG figures for the Sierra 1500?

These are EPA ratings, not owner-reported mileage. Use your measured MPG in the calculator to estimate your own fuel budget. The configuration table keeps city, highway and combined ratings separate.

Does the 1998 GMC Sierra 1500 have recalls?

NHTSA returned 4 model-level campaign records as of 2026-09-04. A campaign record does not establish whether your vehicle is affected or whether a repair is outstanding. Check your VIN through NHTSA.

Does annual fuel cost include servicing or insurance?

No. The EPA cost and the calculator cover fuel only. Use the cost-per-mile calculator to add a maintenance allowance. Insurance, depreciation, finance costs and registration are separate ownership expenses.

Compare similar vehicles

Sources and record dates

U.S. EPA FuelEconomy.gov vehicle dataset Accessed 2026-09-05U.S. EIA public gasoline price table Accessed 2026-09-05NHTSA Recalls API Accessed 2026-09-04NHTSA 5-Star Safety Ratings API Accessed 2026-09-05

How we compile specifications and calculate running costs

Last updated