Based on data from 79 vehicles, 5,404 fuel-ups and 1,317,065 miles of driving, the 2021 Mazda CX-30 gets a combined Avg MPG of 26.40 with a 0.14 MPG margin of error.

Any Engine Type 2.5L L4 GAS (18) L4 FLEX (1) L4 GAS (6) Any Body Style Wagon (1) Hatchback (2) Sport Utility (12) Any Submodel GS (1) 2.5 Turbo (1) Sport Lux (1) GT (2) I Sport (2) i Grand Touring (3) Base (4) 2.5 S (5) Preferred (9) Select (11) Turbo Premium (35) Other (5)

Below you can see a distribution of the fuel-ups with 188 outliers (3.36%) removed.

Following shows the average MPG of each of the 79 vehicles in the system.

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• 2021 Mazda CX-30

  2021 Mazda CX-30 Select
  Added Jul 2021 • 113 Fuel-ups

  Property of rchuck

• 27.7 Avg MPG

• My CX-30

  2021 Mazda CX-30 Select
  Added Jul 2021 • 101 Fuel-ups

  Property of Hurlopz

• 24.2 Avg MPG

• My CX-30

  2021 Mazda CX-30 Sport Lux
  Added Aug 2024 • 31 Fuel-ups

  Property of invictusjoff

• 39.5 Avg MPG

• My CX-30

  2021 Mazda CX-30 Turbo Premium
  Added Nov 2021 • 71 Fuel-ups

  Property of EmilyAnne

• 25.4 Avg MPG

• My CX-30

  2021 Mazda CX-30 Turbo Premium
  Added Jul 2021 • 116 Fuel-ups

  Property of usarmd

• 33.6 Avg MPG

• My CX-30

  2021 Mazda CX-30 Select
  Added Jun 2024 • 34 Fuel-ups

  Property of RyanTheG93

• 28.1 Avg MPG

• Mazda

  2021 Mazda CX-30 Turbo Premium Automatic 6 Speed Sport Utility
  Added Oct 2022 • 97 Fuel-ups

  Property of muthu328

• 21.2 Avg MPG

• My CX-30

  2021 Mazda CX-30 Turbo Premium
  Added Apr 2021 • 72 Fuel-ups

  Property of jenyan

• 27.8 Avg MPG

• My CX-30

  2021 Mazda CX-30 Turbo Premium
  Added Feb 2021 • 179 Fuel-ups

  Property of bradwitt

• 29.2 Avg MPG

• My CX-30

  2021 Mazda CX-30 Select
  Added Apr 2024 • 38 Fuel-ups

  Property of Zian_Tng

• 31.1 Avg MPG

• My CX-30

  2021 Mazda CX-30 Turbo Premium
  Added Jul 2022 • 60 Fuel-ups

  Property of Panhasok

• 24.4 Avg MPG

• CX-30

  2021 Mazda CX-30 GT Turbo L4 GAS
  Added Jun 2021 • 99 Fuel-ups

  Property of Quix

• 25.9 Avg MPG

• Sonic (Baby Pepper Leaf)

  2021 Mazda CX-30 Turbo Premium
  Added Jul 2024 • 13 Fuel-ups

  Property of mhamblen

• 20.4 Avg MPG

• My CX-30

  2021 Mazda CX-30 Turbo Premium
  Added Jan 2021 • 249 Fuel-ups

  Property of sandiegojoey

• 20.7 Avg MPG

• My CX-30

  2021 Mazda CX-30 Select
  Added Mar 2025 • 29 Fuel-ups

  Property of chrisnqc

• 27.6 Avg MPG

• CX-30

  2021 Mazda CX-30 Turbo Premium
  Added Oct 2021 • 143 Fuel-ups

  Property of amclauth

• 28.5 Avg MPG

• Mazda Cx-30

  2021 Mazda CX-30 2.5 S 2.5L L4 GAS Automatic 6 Speed Sport Utility
  Added May 2023 • 65 Fuel-ups

  Property of rtum999o

• 25.7 Avg MPG

• My CX-30

  2021 Mazda CX-30 I Sport 2.5L L4 GAS Automatic 6 Speed
  Added Jun 2021 • 56 Fuel-ups

  Property of bart35

• 25.0 Avg MPG

• My CX-30

  2021 Mazda CX-30 Preferred
  Added Apr 2022 • 41 Fuel-ups

  Property of Juanlabo

• 20.8 Avg MPG

• J-man’s CX-30

  2021 Mazda CX-30 GT 2.5L L4 GAS Automatic 6 Speed
  Added Oct 2024 • 5 Fuel-ups

  Property of jchas

• 28.2 Avg MPG

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