Fuel economy details

Grumman Olson Kubvan 1985

EPA fuel-economy estimates for 2 versions of this vehicle. The overview shows the published range; open each version to compare its powertrain and operating estimates.

26–31published combined MPG

26–30 / 27–32published city / highway MPG

$3,100–$3,700estimated annual fuel-cost range

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.

Configuration comparison

What changes across the published versions

These 2 EPA configurations are listed for this model year. Compare the exact powertrain before relying on a single rating.

Highest combined ratingManual 5-spd reaches 31 combined MPG.

Lowest estimated annual costManual 5-spd is listed at $3,100 per year.

Published range26–31 combined MPG, a difference of 5.

Estimated annual fuel costs differ by up to $600 across the published configurations.

Automatic 3-spd

26 combined MPG

Fuel typeDiesel

Vehicle classSpecial Purpose Vehicles

DriveFront-Wheel Drive

TransmissionAutomatic 3-spd

Tailpipe CO₂391 g/mi

EPA base modelKubvan

Powertrain typeDiesel

Efficiency and cost

Estimated annual petroleum use: 13.7 barrels
Five-year fuel-cost comparison: costs $6,500 more

Manual 5-spd

31 combined MPG

Fuel typeDiesel

Vehicle classSpecial Purpose Vehicles

DriveFront-Wheel Drive

TransmissionManual 5-spd

Tailpipe CO₂328 g/mi

EPA base modelKubvan

Powertrain typeDiesel

Efficiency and cost

Estimated annual petroleum use: 11.5 barrels
Five-year fuel-cost comparison: costs $3,500 more

Where these numbers come from

Source: EPA FuelEconomy.gov. This page was last updated on October 13, 2026. Learn more about how we use vehicle data.