Isuzu Elf 4HL1 vs 4HG1 for Tanzania: Which Engine Should You Choose? When comparing Isuzu Elf 4HL1 vs 4HG1 for Tanzania, the better choice depends on the truck's condition, intended workload, maintenance support, and total purchase cost. Both are Isuzu diesel engines found in different generations of Japanese Elf commercial trucks. The 4HG1 is commonly associated with older NKR71 and NPR71-series vehicles. Meanwhile, the 4HL1 is commonly found in NKR81 and NPR81-series trucks. However, the engine code alone does not determine payload, fuel economy, or vehicle suitability. For businesses in Dar es Salaam, Arusha, Dodoma, and Mwanza, choosing the right ...