Laboratory Tests | NMHC | NOX | NH3 | CO | PN | |
---|---|---|---|---|---|---|
5.410 | Cold Test | |||||
6.610 | Warm Test | |||||
3.410 | Cold Ambient test | |||||
0.010 | Highway | |||||
Road test | ||||||
6.110 | On-Road Drive | |||||
4.08 | On-Road Heavy Load | |||||
2.25 | On-Road Light Load | |||||
4.35 | On-Road Short Trip | |||||
1.02 | Congestion | |||||
Robustness |
Laboratory Tests | Energy | |||
---|---|---|---|---|
5.510 | Cold Test | |||
5.910 | Warm Test | |||
4.710 | Cold Ambient test | |||
3.010 | Highway | |||
Consumption | Driving Range | |||
Average | 7.1l100 km | 801km | ||
Worst-Case | 8.3l100 km | 713km |
Greenhouse Gases | CO2 | N2O | CH4 | |
---|---|---|---|---|
3.27 | Cold Test | |||
3.57 | Warm Test | |||
2.87 | Cold Ambient test | |||
1.97 | Highway |
Our verdict
The CX-30 180 petrol employs Mazda's Skyactiv-X technology, with a very high compression ratio and lean fuel mixture to try to reduce emissions. This is combined with a 24 V mild-hybrid system to improve fuel efficiency. Together with the exhaust after-treatment - three-way catalyst, exhaust gas recirculation and a gasoline particulate filter - the car shows generally low values of pollutant emissions. The weakness is at high engine loads where values of carbon monoxide and carbon dioxide become elevated. This limits the scores in the Clean Air and Greenhouse Gas indexes. Overall, the CX-30 scores similarly across the three areas of assessment and emerges with a solid 2½ star rating.