Isuzu Midi Van
Coolant capacity & service interval
Isuzu Midi Van coolant capacity ranges from 9 to 10 liters. The service interval for coolant is 24 months. The data covers 2 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Midi Van (WFR) 1.8 (1985-1988) |
|
| Midi Van (WFR) 2.0 D (1985-1988) |
|
Additional Notes
- The Isuzu Midi Van carries two distinct coolant capacities depending on engine displacement: the 1.8-liter petrol variant holds 9 liters, while the 2.0-liter diesel variant holds 10 liters.
- The additional liter of coolant in the 2.0 D configuration reflects the generally larger thermal load associated with diesel combustion cycles, which tend to produce more heat rejection through the cooling circuit.
- Both the 1.8 and 2.0 D engines share an identical change interval of 24 months under normal use conditions, meaning neither engine demands a more frequent coolant refresh than the other despite the capacity difference.
- A 24-month coolant change interval is a conventional service cycle for older coolant formulations, typically associated with Inorganic Additive Technology (IAT) antifreeze, which has a shorter service life than modern OAT or HOAT variants.
- The 9-liter and 10-liter figures represent cooling system fill capacities, meaning the total volume of coolant the system holds when fully drained and refilled, rather than a partial top-up quantity.
- Both specifications apply to normal use conditions across the full 1985-1988 model range of the WFR-bodied Midi Van, with no variation in interval or capacity noted within those years for either engine.