The Short Version: Kei Trucks Are Dramatically Cheaper to Run
Every part of kei truck ownership costs less than a full-size pickup — fuel, insurance, maintenance, tires, even the space it takes up in your garage. If you’re cross-shopping a used full-size truck against a Japanese kei truck for farm, property, or light commercial work, the running-cost gap is usually the deciding factor.
Fuel Economy
A well-maintained 660cc kei truck typically returns 35–45 MPG in mixed use — some owners report even higher on flat, low-speed routes. Compare that to 15–20 MPG for a typical gas-powered full-size pickup, and the math adds up fast: at 8,000 miles a year, that’s roughly 350–450 gallons saved annually, even before accounting for the price difference between regular unleaded and diesel.
| Cost Category | Kei Truck | Full-Size Pickup |
|---|---|---|
| Fuel economy | 35–45 MPG | 15–20 MPG |
| Monthly insurance | $20–$80 | $100–$200+ |
| Tire set | ~$300–$500 | ~$800–$1,200 |
| Routine oil change | ~$25–$40 DIY | ~$60–$100 |
| Typical purchase price (used) | $3,000–$13,000 | $15,000–$40,000+ |
Depreciation & Resale
Kei trucks hold value unusually well. Demand has grown steadily as more become import-eligible each year, and because supply is capped by the 25-year rule, well-kept examples with good auction grades tend to hold or even appreciate rather than depreciate the way a typical used vehicle does.
Where the Savings Add Up Fastest
For farm, ranch, and small-property use where a truck is doing short, low-speed hauling runs rather than highway commuting, the fuel and insurance savings alone can offset the purchase price within a few years compared to running an aging full-size truck for the same light-duty work. See our full pricing guide for what to budget upfront.
Frequently Asked Questions
What kind of gas mileage does a kei truck actually get?
Most owners report 35–45 MPG in normal use, though it varies by model, condition, and driving style.
Is a kei truck cheaper to maintain than a full-size truck?
Yes, generally — smaller engine, simpler systems, and lower-cost parts all add up to a lower annual maintenance bill. See our maintenance schedule for specifics.
Do kei trucks hold their value?
Better than most used vehicles. Growing demand and a capped, aging supply (due to the 25-year import rule) keep well-kept examples in demand.
Is fuel savings the main reason people switch to a kei truck?
It’s usually one of several — tighter turning radius, real 4WD, and lower purchase price tend to matter just as much for property and farm buyers.
Ready to see current prices? Browse in-stock kei trucks or check our financing options.