The Isuzu D-Max is recognized for its impressive fuel efficiency across its various engine options and configurations. For the latest 1.9L turbo diesel model, fuel consumption as low as 5.1L/100km was achieved during a long-distance highway test at an average speed of 100km/h[1]. Official combined figures for the larger 3.0L turbo diesel D-Max range between 7.7L/100km (manual) and 8.0L/100km (automatic) according to manufacturer claims and are consistent with real-world tests, which report averages between 7.5 and 8.2L/100km in mixed driving conditions[2][3][4].
Long-term reviews show that typical real-world fuel consumption closely matches these claims, with some testers reporting routine averages of 7.8L/100km for freeway commuting and 7.54L/100km during regular driving[2][4]. Towing heavy loads, fuel consumption rises significantly; tests show figures of approximately 16.28L/100km when towing a 2,500kg van[4]. Urban driving and mixed off-road conditions generally result in higher consumption, such as 8.8L/100km after a mix of city and off-road use for the 1.9L variant[6].
For models available in the UK, the D-Max DL20 Double Cab 4×4 with the 1.9L engine has an official combined cycle fuel economy of 33.6mpg (approximately 7.0L/100km), while long-term urban use can yield lower figures, around 27.7mpg (about 10.2L/100km); improved results are expected with more extra-urban driving[5].
References
- [1] Road-Tripping with ISUZU D-Max: An Experience in Fuel-Efficiency
- [2] 2022 Isuzu D-Max LS-U: long-term review – Street Machine
- [3] ISUZU D-MAX LS-U+ Fuel Test: How fuel-efficient is the D-Max ute?
- [4] Isuzu D-MAX: Long Term Test Wrap-Up – GoRV
- [5] Isuzu D-Max long-term test final report – What Van?
- [6] 2023 Isuzu D-Max review: 1.9-litre SX 4×4