Fuel economy details

ASC Incorporated GNX 1987

EPA fuel-economy estimates for 1 version of this vehicle. Review the published configuration below.

16combined MPG

14 / 21city / highway MPG

$5,150estimated annual fuel cost

How to use these estimates

EPA ratings use standardized city and highway tests, making them a useful starting point for comparing similar vehicles. For model years with several versions, choose the powertrain that matches the vehicle you are considering before relying on a rating.

Your actual fuel or electricity use can vary with weather, payload, driving style, maintenance, and local prices.

(GUZZLER) (FFS,TRBO) · Automatic 4-spd

16 combined MPG

Fuel typePremium Gasoline

Vehicle classMidsize Cars

DriveRear-Wheel Drive

TransmissionAutomatic 4-spd

Tailpipe CO₂555 g/mi

EPA base modelGNX

TurbochargerYes

Efficiency and cost

Estimated annual petroleum use: 18.6 barrels
Five-year fuel-cost comparison: costs $13,750 more

Interior space

Passenger volume: 98 cu ft
Luggage volume: 16 cu ft

EPA class benchmark

Compared with 16 EPA records from 1987 in this vehicle class and fuel type.

Efficiency position: At or above 19%
Combined MPG vs median: 3 MPG below the class median.
Annual cost vs median: $800 higher than the class median.

Where these numbers come from

Source: EPA FuelEconomy.gov. This page was last updated on October 3, 2026. Learn more about how we use vehicle data.