Mazda CX-8: Overview, Generations, Specs, Engines, MPG and Dimensions

The Mazda CX-8 is an SUV 5-doors offered in one generation plus a restyling. Production began in September 2017. The original model ran until October 2022, while the restyled version started in November 2022 and has no recorded end date. Across these periods, the catalogue lists gasoline and diesel engines, a 6-speed Automatic gearbox, and FWD or AWD.

The Mazda CX-8 is an SUV 5-doors offered in one generation plus a restyling. Production began in September 2017. The original model ran until October 2022, while the restyled version started in November 2022 and has no recorded end date. Across these periods, the catalogue lists gasoline and diesel engines, a 6-speed Automatic gearbox, and FWD or AWD. Engine outputs range from 190 hp to 230 hp, combined fuel consumption ranges from 6.3 to 8.6 l/100 km, and listed kerb weights range from 1740 to 1880 kg.

Mazda CX-8 generations

The 1 generation was produced from September 2017 through October 2022 as an SUV 5-doors. It includes five versions: 2.2 AT, 2.2 AT 4WD, 2.5T AT, 2.5T AT 4WD, and 2.5 AT.

The 1 generation, restyling belongs to the same generation and started in November 2022, with no stop date recorded. It remains an SUV 5-doors and also includes five versions: 2.5 AT, 2.5T AT, 2.5T AT 4WD, 2.2 AT, and 2.2 AT 4WD.

Mazda CX-8 engine specs and specifications

Every listed Mazda CX-8 engine has 4 cylinders in an Inline layout and is mounted at the front in a transverse position. Every version also uses a 6-speed Automatic gearbox. The tables distinguish specifications before and after the restyling because some figures changed.

1 generation engine specs

VersionPowerTorqueDisplacementFuelCylinders and layoutBoostGearboxDrive
2.2 AT190 hp (140 kW) at 4500 rpm450 Nm at 2000 rpm2188 ccDiesel4, InlineTurbo6-speed AutomaticFWD
2.2 AT 4WD190 hp (140 kW) at 4500 rpm450 Nm at 2000 rpm2188 ccDiesel4, InlineTurbo6-speed AutomaticAWD
2.5T AT230 hp (169 kW) at 4250 rpm420 Nm at 2000 rpm2488 ccGasoline4, InlineTurbo6-speed AutomaticFWD
2.5T AT 4WD230 hp (169 kW) at 4250 rpm420 Nm at 2000 rpm2488 ccGasoline4, InlineTurbo6-speed AutomaticAWD
2.5 AT192 hp (141 kW) at 6000 rpm258 Nm at 4000 rpm2488 ccGasoline4, InlineNo6-speed AutomaticFWD

The 2.2 AT and 2.2 AT 4WD diesel engines have four valves per cylinder, a compression ratio of 14.4, and an 86 × 94.2 mm bore and stroke. The 2.5T AT and 2.5T AT 4WD gasoline engines have four valves per cylinder, a compression ratio of 10.5, and an 89 × 100 mm bore and stroke. The naturally aspirated 2.5 AT uses Direct injection (direct), four valves per cylinder, a compression ratio of 13, and the same 89 × 100 mm bore and stroke.

1 generation, restyling engine specs

VersionPowerTorqueDisplacementFuelCylinders and layoutBoostGearboxDrive
2.5 AT192 hp (141 kW) at 6000 rpm258 Nm at 4000 rpm2488 ccGasoline4, InlineNo6-speed AutomaticFWD
2.5T AT230 hp (169 kW) at 4250 rpm420 Nm at 2000 rpm2488 ccGasoline4, InlineTurbo6-speed AutomaticFWD
2.5T AT 4WD230 hp (169 kW) at 4250 rpm420 Nm at 2000 rpm2488 ccGasoline4, InlineTurbo6-speed AutomaticAWD
2.2 AT190 hp (139 kW) at 4500 rpm450 Nm at 2000 rpm2188 ccDiesel4, InlineTurbo6-speed AutomaticFWD
2.2 AT 4WD190 hp (139 kW) at 4500 rpm450 Nm at 2000 rpm2188 ccDiesel4, InlineTurbo6-speed AutomaticAWD

In the restyled range, the 2.5 AT, 2.5T AT, and 2.5T AT 4WD use Direct injection (direct). Their compression ratios remain 13 for 2.5 AT and 10.5 for both turbo versions. The restyled 2.2 AT and 2.2 AT 4WD retain a compression ratio of 14.4. All five engines have four valves per cylinder.

Mazda CX-8 performance, fuel consumption and MPG

Acceleration from 0–100 km/h is not measured for every listed Mazda CX-8 version. Top speed is also not measured for every version. The supplied figures report fuel consumption in l/100 km rather than mpg, so mpg is not measured.

1 generation economy

Version0–100 km/hTop speedCityHighwayCombinedCO₂
2.2 ATnot measurednot measured7.9 l/100 km5.6 l/100 km6.3 l/100 km147 g/km
2.2 AT 4WDnot measurednot measured8.0 l/100 km5.7 l/100 km6.5 l/100 km152 g/km
2.5T ATnot measurednot measured11.0 l/100 km7.2 l/100 km8.3 l/100 km193 g/km
2.5T AT 4WDnot measurednot measured11.5 l/100 km7.4 l/100 km8.6 l/100 km200 g/km
2.5 ATnot measurednot measured10.2 l/100 km7.1 l/100 km8.1 l/100 km187 g/km

1 generation, restyling economy

Version0–100 km/hTop speedCityHighwayCombinedCO₂
2.5 ATnot measurednot measured10.2 l/100 km7.1 l/100 km8.1 l/100 km187 g/km
2.5T ATnot measurednot measured11.0 l/100 km7.2 l/100 km8.3 l/100 km193 g/km
2.5T AT 4WDnot measurednot measured11.5 l/100 km7.4 l/100 km8.6 l/100 km200 g/km
2.2 ATnot measurednot measured7.9 l/100 km5.6 l/100 km6.3 l/100 km147 g/km
2.2 AT 4WDnot measurednot measured8.0 l/100 km5.7 l/100 km6.5 l/100 km152 g/km

All listed versions meet Euro 6. The FWD 2.2 AT has the lowest recorded combined consumption at 6.3 l/100 km. Adding AWD to the diesel raises combined consumption by 0.2 l/100 km and CO₂ emissions by 5 g/km. Among the gasoline versions, the naturally aspirated 2.5 AT records 8.1 l/100 km combined, which is 0.2 l/100 km below 2.5T AT and 0.5 l/100 km below 2.5T AT 4WD.

Mazda CX-8 dimensions, weight and ground clearance

Exterior length, width, height, and wheelbase are not measured in the supplied specifications. Wheel sizes and gross weight are also not measured for any version. Every Mazda CX-8 version has a 72-litre fuel tank. Ground clearance is listed as 200 mm except for the original 2.2 AT FWD, for which clearance is not measured.

Period and versionKerb weightGross weightGround clearanceTankWheel sizes
1 generation — 2.2 AT1780 kgnot measurednot measured72 lnot measured
1 generation — 2.2 AT 4WD1850 kgnot measured200 mm72 lnot measured
1 generation — 2.5T AT1810 kgnot measured200 mm72 lnot measured
1 generation — 2.5T AT 4WD1880 kgnot measured200 mm72 lnot measured
1 generation — 2.5 AT1810 kgnot measured200 mm72 lnot measured
1 generation, restyling — 2.5 AT1740 kgnot measured200 mm72 lnot measured
1 generation, restyling — 2.5T AT1810 kgnot measured200 mm72 lnot measured
1 generation, restyling — 2.5T AT 4WD1880 kgnot measured200 mm72 lnot measured
1 generation, restyling — 2.2 AT1780 kgnot measured200 mm72 lnot measured
1 generation, restyling — 2.2 AT 4WD1780 kgnot measured200 mm72 lnot measured

All versions use Independent, spring front and rear suspension, Ventilated disc front brakes, and Disc rear brakes.

Mazda CX-8 engine problems, oil and reliability data

Engine problems and reliability are not measured in the supplied data. Engine oil capacity, oil type, and oil level information are also not measured. Consequently, the specifications do not support a claim about which Mazda CX-8 engine is more reliable or which oil specification it requires.

Which Mazda CX-8 version to choose

The 2.2 AT is the economy-focused choice in both periods. It produces 190 hp and the range’s highest torque figure, 450 Nm, while recording the lowest combined consumption of 6.3 l/100 km. The 2.2 AT 4WD keeps the same 190 hp and 450 Nm but adds AWD; its combined consumption is 6.5 l/100 km.

The 2.5 AT suits buyers comparing the gasoline versions on consumption rather than peak output. It produces 192 hp and 258 Nm and records 8.1 l/100 km combined. Compared with 2.5T AT, it has 38 hp less power and 162 Nm less torque, while consuming 0.2 l/100 km less on the combined cycle.

The 2.5T AT is the most powerful FWD option at 230 hp and 420 Nm. The 2.5T AT 4WD provides the same output with AWD, but combined consumption rises from 8.3 to 8.6 l/100 km. Both versions reach peak torque at 2000 rpm.

For the lowest listed kerb weight, the restyled 2.5 AT is 1740 kg. For AWD with the lowest listed combined consumption, the 2.2 AT 4WD records 6.5 l/100 km. For the highest power with AWD, the 2.5T AT 4WD combines 230 hp with 420 Nm, a 6-speed Automatic gearbox, and AWD.