5BA-GJ5FW · 6BA-GJ5FW · DBA-GJ5FW
Mazda Mazda6 GJ5FW specs
GJ5FW is the model code of the Mazda Mazda6 / Atenza. Japan’s transport ministry lists it in its fuel economy lists from 2013–2024 under 3 model types 5BA-GJ5FW, 6BA-GJ5FW, DBA-GJ5FW. A genuine car’s chassis number starts GJ5FW-.
GJ5FW at a glance
- Make
- Mazda
- Model
- Mazda6, Atenza
- Model code
- GJ5FW
- Model types
- 5BA-GJ5FW, 6BA-GJ5FW, DBA-GJ5FW
- In MLIT’s lists
- 2013–2024
- Engines
- PY 2,488 cc petrol
- Gearboxes
- 6-speed automatic
- Drive
- front-wheel drive
- Kerb weight
- 1,470–1,600 kg
- Official fuel economy
- 12.4–16 km/L (35–45 mpg)
Fuel economy is from Japan’s official tests and is usually better than you’ll see on UK roads. MLIT doesn’t list power or torque.
5BA-GJ5FW
Listed 2020–2023. The 5BA prefix (our explanation, not MLIT’s) means petrol passenger car certified to Japan’s 2018 emissions rules, 50% below their limits. Check 5BA-GJ5FW against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| PY2,488 cc petrol | 6-speed automatic | front-wheel drive | 1,590–1,600 kg | 5 | 12.4 km/L35 mpg, WLTC test | 2020–2023 |
6BA-GJ5FW
Listed 2019–2024. The 6BA prefix (our explanation, not MLIT’s) means petrol passenger car certified to Japan’s 2018 emissions rules, 75% below their limits. Check 6BA-GJ5FW against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| PY2,488 cc petrol | 6-speed automatic | front-wheel drive | 1,560–1,570 kg | 5 | 14.8 km/L42 mpg, Japanese JC08 test | 2019–2024 |
| PY2,488 cc petrol | 6-speed automatic | front-wheel drive | 1,560–1,570 kg | 5 | 14.2 km/L40 mpg, WLTC test | 2019–2024 |
DBA-GJ5FW
Listed 2013–2018. The DBA prefix (our explanation, not MLIT’s) means petrol passenger car certified to Japan’s 2005 emissions rules, 75% below their limits. Check DBA-GJ5FW against ULEZ and clean air zones.
| Engine | Gearbox | Drive | Weight | Seats | Fuel economy | Listed |
|---|---|---|---|---|---|---|
| PY2,488 cc petrol | 6-speed automatic | front-wheel drive | 1,470–1,480 kg | 5 | 15.6–16 km/L44–45 mpg, Japanese JC08 test | 2013–2018 |
Each row is one version as MLIT lists it. A version can appear twice when MLIT gave figures on two tests that year. Low-emission stars and trim names aren’t shown. MLIT gives fuel economy in km/L; the mpg figures are our conversion to UK gallons. Japanese tests are gentler than real UK driving, so expect less.
GJ5FW build year by chassis number
Japan’s carmakers list the chassis numbers each code was built with every year from 2015. Find the serial below, or use the build year finder.
| Built | Chassis numbers |
|---|---|
| 2015 | GJ5FW-200092 to 200608 |
| 2016 | GJ5FW-200609 to 200851GJ5FW-300001 to 300343 |
| 2017 | GJ5FW-300445 to 300732GJ5FW-301225 to 301500 |
| 2018 | GJ5FW-300733 to 300813GJ5FW-400003 to 400546 |
| 2019 | GJ5FW-400547 to 400768GJ5FW-500002 to 500258GJ5FW-500260 to 500266 |
| 2020 | GJ5FW-500259 to 500485GJ5FW-550001 to 550055GJ5FW-550057 to 550058 |
| 2021 | GJ5FW-550056 to 550056GJ5FW-550059 to 550243 |
| 2022 | GJ5FW-550244 to 550371GJ5FW-600001 to 600067 |
| 2023 | GJ5FW-600024 to 600024 |
| 2024 | GJ5FW-600312 to 600446 |
From the JAMA chassis number lists: 車台番号一覧表. We keep only the chassis code, serial ranges and year. JAMA calls them reference information, not a certificate.
Check a GJ5FW before you buy
Make sure the car is what the advert says: the chassis number on the V5C should start GJ5FW-, and the engine and gearbox should match one of the versions above. Our free check reads the UK MOT history and compares it with the chassis code.
Other Mazda Mazda6 model codes
Questions
What engine does the GJ5FW have?
MLIT lists the Mazda Mazda6 / Atenza GJ5FW with PY 2,488 cc petrol.
What fuel economy does the GJ5FW get?
Officially between 12.4 and 16 km/L (about 35–45 mpg), depending on the version, on Japan’s own tests. Real-world figures are usually lower, especially against the older 10-15 mode test.
How heavy is the GJ5FW?
Between 1,470 and 1,600 kg kerb weight, depending on the version.
Is 5BA-GJ5FW the same as GJ5FW?
Yes. 5BA-GJ5FW is the full model type: the letters before the hyphen are Japan’s emissions code, which changed as the rules were tightened, and GJ5FW is the model code. The chassis number starts with GJ5FW-.
About these figures
The model types, engine codes, capacities, gearboxes, drive, weights, seats and km/L figures are copied from MLIT’s yearly lists of cars on sale in Japan each March, so “listed” years are list years, not exact production dates. The English model names, mpg conversions, emissions code explanations and chassis number matching are ours. Lists before 2013 were printed as PDFs that we read by machine; where an older list gives an engine code that doesn’t match its capacity, we’ve used the figure the same model type has in other years. Check anything that matters against the car’s own papers. Spotted a mistake? Email [email protected]. All Mazda model codes.
Source: Ministry of Land, Infrastructure, Transport and Tourism (MLIT), Japan, fuel economy lists 2004–2026, used under the Public Data License 1.0. Edited and translated by JDM History.