Based on data from 18 vehicles, 1,484 fuel-ups and 355,325 miles of driving, the 2021 Nissan Frontier gets a combined Avg MPG of 18.71 with a 0.18 MPG margin of error.

Any Engine Type 3.8L V6 GAS (6) V6 GAS (3) Any Body Style Extended Cab Pickup (1) Crew Cab Pickup (4) Cab & Chassis - Crew Cab (1) Cab & Chassis - Extended Cab (1) Any Submodel S (1) PRO-4X (4) SV (12) Other (1)

Below you can see a distribution of the fuel-ups with 23 outliers (1.53%) removed.

Following shows the average MPG of each of the 18 vehicles in the system.

• My Frontier

  2021 Nissan Frontier PRO-4X 3.8L V6 GAS Automatic 9 Speed
  Added Mar 2024 • 13 Fuel-ups

  Property of TruckGuy

• 17.8 Avg MPG

• My Frontier

  2021 Nissan Frontier SV
  Added Mar 2022 • 163 Fuel-ups

  Property of callicuttallen

• 21.5 Avg MPG

• Frontier

  2021 Nissan Frontier SV 3.8L V6 GAS Automatic 9 Speed Crew Cab Pickup
  Added Dec 2023 • 77 Fuel-ups

  Property of Sandc1991

• 19.6 Avg MPG

• My Frontier

  2021 Nissan Frontier SV
  Added Jun 2021 • 196 Fuel-ups

  Property of Tedj09

• 19.4 Avg MPG

• Truck

  2021 Nissan Frontier SV V6 GAS Automatic 9 Speed Crew Cab Pickup
  Added May 2021 • 104 Fuel-ups

  Property of RichYoder

• 17.1 Avg MPG

• My Frontier

  2021 Nissan Frontier PRO-4X 3.8L V6 GAS Automatic 9 Speed
  Added Aug 2021 • 188 Fuel-ups

  Property of arana

• 16.2 Avg MPG

• Frontier

  2021 Nissan Frontier PRO-4X 3.8L V6 GAS Automatic Crew Cab Pickup
  Added Aug 2022 • 55 Fuel-ups

  Property of leechi

• 20.9 Avg MPG

• Frontier

  2021 Nissan Frontier SV 3.8L V6 GAS Automatic 9 Speed Cab & Chassis - Crew Cab
  Added Oct 2021 • 117 Fuel-ups

  Property of 2021Frontier

• 20.3 Avg MPG

• My Frontier

  2021 Nissan Frontier SV
  Added Jul 2022 • 83 Fuel-ups

  Property of tLove

• 17.2 Avg MPG

• Boss Black

  2021 Nissan Frontier SV V6 GAS Automatic 9 Speed Cab & Chassis - Extended Cab
  Added Aug 2021 • 45 Fuel-ups

  Property of stanengel

• 18.4 Avg MPG

• 2022 Frontier

  2021 Nissan Frontier PRO-4X 3.8L V6 GAS Automatic 9 Speed
  Added Sep 2021 • 47 Fuel-ups

  Property of rsbme

• 15.8 Avg MPG

• Lucy

  2021 Nissan Frontier SV
  Added Aug 2021 • 153 Fuel-ups

  Property of jeremyvraley

• 17.3 Avg MPG

• My Frontier

  2021 Nissan Frontier SV
  Added Jun 2021 • 107 Fuel-ups

  Property of gunsmith

• 18.8 Avg MPG

• Frontier

  2021 Nissan Frontier SV V6 GAS Automatic 9 Speed Crew Cab Pickup
  Added Aug 2022 • 66 Fuel-ups

  Property of jamie3529gq

• 16.1 Avg MPG

• My Frontier

  2021 Nissan Frontier Midnight
  Added Jun 2022 • 32 Fuel-ups

  Property of greatwaterguy

• 17.7 Avg MPG

• My Frontier

  2021 Nissan Frontier SV
  Added Feb 2022 • 41 Fuel-ups

  Property of Shastababy

• 23.3 Avg MPG

• BaseV6

  2021 Nissan Frontier S Automatic 9 Speed Extended Cab Pickup
  Added Oct 2021 • 67 Fuel-ups

  Property of EconomyEnthusiast

• 21.9 Avg MPG

• My Frontier

  2021 Nissan Frontier SV
  Added Apr 2021 • 9 Fuel-ups

  Property of azrider44

• 21.9 Avg MPG