Toyota Land Cruiser 60, J6 (EU)

Additional Notes

• The Toyota Land Cruiser 60, J6 (EU) cooling system capacities vary across the three available engine configurations, ranging from 13.8 liters in the 3.4 D (BJ6) up to 16.5 liters in the 4.2 petrol (FJ6), with the 4.0 D (HJ6) sitting at 15.4 liters in between.
• A 13.8-liter cooling system capacity in the 3.4 D (BJ6) represents a full system fill, meaning the figure accounts for the total volume of coolant held across the engine block, cylinder head passages, radiator, and associated hoses.
• The 4.2 (FJ6) carries the largest cooling system at 16.5 liters, which reflects the greater thermal management demands of a larger-displacement petrol engine compared to the diesel variants in the same model range.
• Under normal use conditions, all three engine variants share an identical coolant change interval of 48,000 km or 36 months, whichever comes first, applied uniformly across the 1985-1990 model years.
• The initial service interval for all three variants extends to 96,000 km or 72 months, exactly double the normal change interval. An initial service designation typically applies to the factory-fill coolant, which is formulated to last longer before the first drain and refill.
• The 4.0 D (HJ6) cooling system capacity of 15.4 liters is 1.6 liters greater than the 3.4 D (BJ6), a difference that would be relevant when calculating the quantity of coolant concentrate required to achieve a correct antifreeze-to-water ratio at service time.
• The time-based component of the normal interval, 36 months, means a coolant change is due regardless of mileage if three years have elapsed, which accounts for coolant additive degradation that occurs independently of vehicle use.