BYD e6 Fuel Economy (MPG)

Name: BYD e6 MPG & Fuel Economy
Creator: AutoSpecData
License: https://creativecommons.org/licenses/by/4.0/

What is the real-world gas mileage of a 2020 BYD e6?

The 2020 BYD e6 gets up to 72 MPG combined (73 city / 71 highway) in EPA testing.

Latest model year (2020):

The BYD e6 gets up to 72 MPG combined (73 city / 71 highway) in the Auto (A1) trim.

Verifiedfueleconomy.gov · Verified August 11, 2026

Overview MPG Engine Specs Fuel Cost Transmission Drivetrain Vehicle Class Maintenance EV Range

BYD e6 MPG — All Years

Year	Trim	Engine	Fuel	City (MPG)	Hwy (MPG)	Combined (MPG)
2020	Auto (A1)	—	Electricity	73	71	72
2018	Auto (A1)	—	Electricity	73	71	72
2017	Auto (A1)	—	Electricity	73	71	72
2016	Auto (A1)	—	Electricity	73	71	72

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

BYD e6 data analysis

How BYD e6 combined fuel economy varies

Across 4 configurations recorded for the 2016 through 2020 BYD e6, combined fuel economy runs from 72 MPG to 72 MPG. The strongest figure belongs to the 2016 BYD e6 (Auto (A1)) at 72 MPG, and the weakest to the 2020 car (Auto (A1)) at 72 MPG — a spread of 0%. The narrow spread means any year of the BYD e6 in this table behaves much like the others, so you can shop on price, condition and mileage rather than chasing a particular model year.

What changed for 2020

Average combined fuel economy for the 2020 BYD e6 is 72 MPG, against 72 MPG for the 2018 car — it held flat. A carry-over year like this usually means no powertrain or structural change, so an older example is the cheaper way into the same specification.

How to read this BYD e6 data

This page lists every 2016 through 2020 BYD e6 record we hold for this measurement — 4 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Where these BYD e6 figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The BYD e6 record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Official Factory Specs vs. AutoSpecData Expert Benchmarks

The EPA highway loop never holds interstate speed. Here is what the same engine does when you sit on the cruise control.

Cruise speed	EPA highway spec	AutoSpecData adjusted MPG	Fuel you lose
60 mph	71 MPG	71 MPG	0%
65 mph	71 MPG	64.8 MPG	9%
70 mph	71 MPG	59.2 MPG	17%
75 mph	71 MPG	54.2 MPG	24%
80 mph	71 MPG	49.7 MPG	30%

Our Real-World Speed MPG Adjuster re-scales the BYD e6 EPA highway result with a quadratic drag term (mpg = hwy ÷ (1 + k·(v² − 60²)/60²), k = 0.55 for trucks, SUVs and vans, 0.42 for cars). Wind, roof racks, and a heavy right foot make it worse, never better.

Frequently Asked Questions About e6 MPG

What is the MPG of the BYD e6?

The BYD e6 gets up to 72 MPG combined (73 city / 71 highway) in the 2020 model year. Fuel economy varies by engine and trim — see the full table above for details.

Which BYD e6 trim has the best fuel economy?

The Auto (A1) trim offers the best combined fuel economy at 72 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.