The 1RZ engine, a 2.0-liter inline-4 from Toyota, is known for its balance of power and fuel efficiency, commonly used in the Toyota HiAce and Hilux models[1]. Fuel consumption figures for the 1RZ-E fuel-injected version (as found in models like the Toyota Hilux 2001) are reported as 12.6 L/100 km in city driving, 8.7 L/100 km on the highway, and 11.0 L/100 km combined[3].
The carbureted 1RZ model is also recognized for its excellent fuel efficiency, making it a cost-effective engine choice for both commercial and private use[2][4]. Actual fuel consumption varies depending on configuration, weight, driving style, and vehicle load, but these numbers provide a reliable reference for typical conditions.
Owners and third-party assessments further highlight the low fuel consumption of vehicles equipped with the 1RZ, especially when used for urban commuting or light commercial purposes. The engine is specifically designed to optimize fuel use, which contributes to its popularity in markets where running costs are a major factor[2][4].