Geo

Geo Storm

Geo Storm
Photo: IFCAR / Wikimedia Commons · Public domain

The official data lists 11 versions of the Geo Storm (1990–1993), in the United States. Each market publishes its own figures, measured on its own test procedure.

At a glance

Years in the data
1990–1993
Markets
United States
Engines
1.6 L to 1.8 L
Fuels
Petrol
Lowest consumption (United States)
8.1 L/100 km (EPA)

What is the Geo Storm?

The Geo Storm was a sporty compact car sold in the United States from 1990 to 1993. Its three-door liftback shape gave it a distinctive profile in Geo’s small-car line-up. Geo was General Motors’ compact-car marque, marketed through Chevrolet, with models developed alongside Japanese manufacturers.

The Storm was developed by Isuzu and shared its roots with the Isuzu Impulse. It brought a sportier shape to a range known for compact cars.

Generations, engines and power

The Storm had one generation, sold from 1990 to 1993 and identified by the GM R code. It was offered with petrol engines from 1.6 L to 1.8 L, across 11 versions.

How economical is the Geo Storm?

In official United States EPA figures, the best combined rating was 29 MPG, equivalent to 8.1 L/100 km. EPA results use a different test procedure from European WLTP or NEDC ratings and Canada’s 5-cycle procedure, so figures across these markets are not directly equivalent.

Where was the Geo Storm sold?

The Geo Storm was sold in the United States and Canada. Its model years ran from 1990 to 1993.

Questions and answers

What years was the Geo Storm sold?

The Geo Storm was sold from 1990 to 1993.

What engines did the Geo Storm have?

Its petrol engines ranged from 1.6 L to 1.8 L.

What is the Geo Storm’s best official fuel economy?

Its best combined EPA rating was 29 MPG, equivalent to 8.1 L/100 km.

Was the Geo Storm sold in Canada?

Yes. The Geo Storm was sold in both the United States and Canada.

Storm first generation (1990–1993)

Geo Storm first generation
Photo: IFCAR / Wikimedia Commons · Public domain

Model codes: GM R · Sold in: United States and Canada · References: en.wikipedia.org, carsandracingstuff.com

United States 11 versions

Model years sold in the USA, from the EPA and the Department of Energy (fueleconomy.gov). MPG on the EPA test; litres per 100 km = 235.215 ÷ MPG.

Years and versionEngineFuelGearboxDriveConsumption (combined)CO₂
1993(SOHC) (FFS)1.6 LPetrol3-speed automaticFront-wheel drive25 MPG (9.4 L/100 km) EPA221 g/km
1993(SOHC) (FFS), SIL1.6 LPetrol5-speed manualFront-wheel drive28 MPG (8.4 L/100 km) EPA197 g/km
1992–1993(FFS), 2MODE CLKUP · (DOHC) (FFS), 2MODE CLKUP1.8 LPetrol4-speed automaticFront-wheel drive22 MPG (10.7 L/100 km) EPA251 g/km
1992–1993(FFS) · (DOHC) (FFS)1.8 LPetrol5-speed manualFront-wheel drive24 MPG (9.8 L/100 km) EPA230 g/km
1991–1992(SOHC) (FFS) · (FFS)1.6 LPetrol3-speed automaticFront-wheel drive24 MPG (9.8 L/100 km) EPA230 g/km
1991–1992(SOHC) (FFS), SIL · (FFS), SIL1.6 LPetrol5-speed manualFront-wheel drive28 MPG (8.4 L/100 km) EPA197 g/km
1990–1991(DOHC) (FFS), 2MODE CLKUP1.6 LPetrol4-speed automaticFront-wheel drive24 MPG (9.8 L/100 km) EPA230 g/km
1991(DOHC) (FFS)1.6 LPetrol5-speed manualFront-wheel drive25 MPG (9.4 L/100 km) EPA221 g/km
1990(SOHC) (FFS)1.6 LPetrol3-speed automaticFront-wheel drive24 MPG (9.8 L/100 km) EPA230 g/km
1990(SOHC) (FFS), SIL1.6 LPetrol5-speed manualFront-wheel drive29 MPG (8.1 L/100 km) EPA190 g/km
1990(DOHC) (FFS)1.6 LPetrol5-speed manualFront-wheel drive26 MPG (9.0 L/100 km) EPA212 g/km

Official figures are measured on standard test procedures and differ between markets. Your consumption depends on how, where and in what conditions you drive.