# 2027 Silverado V8s Have Worse Gas Mileage

> Chevrolet's 2027 Silverado V8s now get 1-2 mpg less fuel efficiency than 2026 models.
- Title: 2027 Silverado V8s Have Worse Gas Mileage · Jalopnik
- Summary: Chevrolet's 2027 Silverado V8s now get 1-2 mpg less fuel efficiency than 2026 models. GM's 2027 Silverado V8s have worse gas mileage than 2026 versions, a…
- Keywords: chevrolet, silverado, 2027, gas mileage, gmc, sierra, Jalopnik
- Source: Jalopnik — https://jalopnik.com/2306047/2027-chevrolet-silverado-new-v8s-worse-gas-mileage
- Author: Logan K. Carter
- Published: 2026-11-03T22:16:17+00:00
- Read time: 1 min
- Topics: chevrolet, silverado, 2027, v8, gas mileage, gm, gmc, sierra, cars, culture
## 2027 Silverado V8s Get Worse Gas Mileage
Chevrolet announced fuel economy numbers for 2027 Silverado V8s, which all get worse gas mileage than 2026 models.
## City and Highway Ratings Drop
2027 Silverados with 5.7-liter V8s get 16 mpg city, 19 mpg highway, and 17 combined versus 2026 models.
## 6.6-Liter V8s Show Even Lower Mileage
2027 Silverados with 6.6-liter V8s get 14 mpg city, 18 mpg highway, and 15 combined versus 2026 models.
## Diesel and Four-Cylinder Options Also Decline
Most 2027 diesel Silverados get 1-2 mpg worse city and highway mileage than 2026 models.
## Key takeaway

GM's 2027 Silverado V8s have worse gas mileage than 2026 versions, a change oil companies will welcome.