The Isuzu KB 250 diesel offers fuel consumption figures that vary depending on the model year, driving conditions, and maintenance. Isuzu claims a combined cycle fuel consumption of 7.9L/100 km (approximately 12.6 km/l) for recent models, which translates to just over 1,000 km on a single 80L tank[4][6]. However, real-world reports from owners often indicate slightly higher fuel usage, with many averaging around 9 km/l—equivalent to approximately 11.1L/100 km[1].
Online fuel tracking platforms list actual averages from users between 22.4 MPG (10.5L/100km) for 2009 models and up to 27.2 MPG (8.7L/100km) for older variants, depending on generation and driving history[2]. One owner of a 2017 KB250 High Rider reports getting between 850–925 km per 80L tank (roughly 9.4–8.6L/100 km), especially with mostly open-road driving[3].
Some earlier models, such as the KB72 250 D-TEQ 4×4, had a manufacturer-claimed consumption of 9.3L/100 km, but road tests often found figures closer to 11L/100 km, reflecting real-world driving factors like load, speed, and driving style[5].
Overall, prospective buyers should expect the Isuzu KB 250 diesel to average between 7.9 and 11L/100 km under typical mixed driving conditions.