The Isuzu FTR 850 achieves a fuel consumption of approximately 23.28 litres per 100 kilometres under ideal, unloaded conditions according to independent vehicle testing[1]. Official manufacturer and dealer specifications often do not publish a typical fuel consumption figure for this truck model; instead, they note its diesel engine and 6-speed transmission designed to optimize efficiency for its 7.8-litre (7790 cc) displacement[3]. Real-world consumption can vary substantially depending on cargo load, driving style, terrain, and other operational factors. The vehicle features a fuel tank capacity of either 200 litres or dual tanks for extended range, supporting its use in regional and local distribution[7]. Service intervals for the FTR 850 are generally set at 20,000 km, a point that further contributes to its cost-effectiveness for operators[1].