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Best Special Purpose Vehicle 4WD gas mileage, 2026 models
2 2026 models are in the Special Purpose Vehicle 4WD class in the agency's file. The top figure is 15 mpg combined for the Chevrolet Silverado; the middle figure of the class is 15 mpg.
Ranked by best combined mileage
Each model's best version, miles per gallon, combined city and highway.
1. Chevrolet SilveradoSilverado Cab Chassis 4WD - 1 version tested
15 mpg
2. GMC SierraSierra Cab Chassis 4WD - 1 version tested
15 mpg
Common questions
What is the most fuel-efficient Special Purpose Vehicle 4WD in 2026?
The Chevrolet Silverado Cab Chassis 4WD with 15 miles per gallon combined (14 city, 16 highway).
How many 2026 models are in the Special Purpose Vehicle 4WD class?
2 models in the agency's file.
Mileage and fuel cost: U.S. Environmental Protection Agency, fueleconomy.gov vehicle file (file dated 2026-11-04). Your own mileage depends on how and where you drive. Where our numbers come from.