Based on data from 134 vehicles, 9,899 fuel-ups and 3,518,786 miles of driving, the 2015 Kia Optima gets a combined Avg MPG of 25.29 with a 0.11 MPG margin of error.

Any Engine Type 2.0L L4 GAS (19) 2.4L L4 ELECTRIC/GAS (26) 2.4L L4 FULL HYBRID EV-GAS (FHEV) (1) 2.4L L4 GAS (81) DIESEL (1) Any Body Style Sedan (50) Any Submodel 1 (1) Limited (2) 3 (2) EX Luxury (3) SXL Turbo (4) SX (5) Hybrid LX (10) SX Turbo (14) Hybrid EX (17) LX (27) EX (48) Other (1)

Below you can see a distribution of the fuel-ups with 627 outliers (5.96%) removed.

Following shows the average MPG of each of the 134 vehicles in the system.

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• My Optima

  2015 Kia Optima LX 2.4L L4 GAS Automatic 6 Speed
  Added Jan 2024 • 113 Fuel-ups

  Property of werbo1

• 28.5 Avg MPG

• 2015 KIA Optima

  2015 Kia Optima EX 2.4L L4 GAS Automatic 6 Speed Sedan
  Added Sep 2018 • 159 Fuel-ups

  Property of atdotcom

• 40.9 Avg MPG

• Otto

  2015 Kia Optima EX 2.4L L4 GAS Automatic 6 Speed
  Added Oct 2021 • 116 Fuel-ups

  Property of GreatestOfAllToms

• 22.6 Avg MPG

• Optima

  2015 Kia Optima EX 2.4L L4 GAS Automatic 6 Speed
  Added Jan 2018 • 393 Fuel-ups

  Property of scholtespilot

• 28.0 Avg MPG

• Switch hitter

  2015 Kia Optima Hybrid LX 2.4L L4 ELECTRIC/GAS Automatic 6 Speed
  Added Mar 2023 • 52 Fuel-ups

  Property of paxman356

• 34.6 Avg MPG

• 2015 Optima

  2015 Kia Optima EX 2.4L L4 GAS Automatic 6 Speed Sedan
  Added Jan 2021 • 220 Fuel-ups

  Property of Andrew1390

• 23.4 Avg MPG

• Suzie's

  2015 Kia Optima SXL Turbo 2.0L L4 GAS Automatic 6 Speed Sedan
  Added Jan 2018 • 428 Fuel-ups

  Property of Firehawk77ta

• 26.6 Avg MPG

• Kia Optima

  2015 Kia Optima SX 2.4L L4 GAS Automatic 6 Speed Sedan
  Added Nov 2017 • 316 Fuel-ups

  Property of teohjo

• 23.6 Avg MPG

• Kia Optima - Studies Weekly Company Car

  2015 Kia Optima LX 2.4L L4 GAS Automatic 6 Speed
  Added Aug 2016 • 205 Fuel-ups

  Property of cstott

• 22.4 Avg MPG

• Darlene

  2015 Kia Optima EX 2.4L L4 GAS Automatic 6 Speed
  Added Mar 2017 • 324 Fuel-ups

  Property of darlenekm

• 28.3 Avg MPG

• My Optima

  2015 Kia Optima SXL Turbo 2.0L L4 GAS Automatic 6 Speed
  Added Oct 2020 • 147 Fuel-ups

  Property of apitts

• 22.5 Avg MPG

• My Optima

  2015 Kia Optima EX 2.4L L4 GAS Automatic 6 Speed
  Added Jul 2017 • 226 Fuel-ups

  Property of milleykay79

• 25.9 Avg MPG

• Kai Optima EX

  2015 Kia Optima EX 2.4L L4 GAS Automatic 6 Speed Sedan
  Added Oct 2017 • 166 Fuel-ups

  Property of cwdean

• 28.7 Avg MPG

• Seraph

  2015 Kia Optima EX 2.4L L4 GAS Automatic 6 Speed Sedan
  Added Apr 2019 • 162 Fuel-ups

  Property of Hurley02777

• 29.5 Avg MPG

• Kia 2015

  2015 Kia Optima EX 2.4L L4 GAS Automatic 6 Speed Sedan
  Added Mar 2018 • 180 Fuel-ups

  Property of djdeity

• 24.7 Avg MPG

• Kia Optima SX Turbo 2015

  2015 Kia Optima SX Turbo 2.0L L4 GAS Automatic 6 Speed
  Added Mar 2017 • 406 Fuel-ups

  Property of balletmom

• 21.5 Avg MPG

• My Optima

  2015 Kia Optima LX 2.4L L4 GAS Automatic 6 Speed
  Added Mar 2025 • 5 Fuel-ups

  Property of jmmoro87

• 23.8 Avg MPG

• Neil's KIA

  2015 Kia Optima LX 2.4L L4 GAS Automatic 6 Speed Sedan
  Added Mar 2021 • 63 Fuel-ups

  Property of neilalvares

• 31.1 Avg MPG

• 15 OPTIMA

  2015 Kia Optima LX 2.4L L4 GAS Automatic 6 Speed Sedan
  Added Nov 2014 • 293 Fuel-ups

  Property of MIKESMAGRT

• 29.9 Avg MPG

• Kenz’s Optima

  2015 Kia Optima LX 2.4L L4 GAS Automatic 6 Speed
  Added Oct 2024 • 20 Fuel-ups

  Property of kenzielovestwd

• 27.8 Avg MPG

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