Land Rover Series III, 88/109 (EU)

Additional Notes

• The Land Rover Series III 88/109 (EU) coolant specifications cover three distinct engine families: a diesel, a petrol four-cylinder, a six-cylinder, and a V8, each carrying a different cooling system capacity.
• Both the diesel 109 and diesel 88 share an identical cooling system capacity of 7.8 liters, indicating the same engine block and cooling circuit architecture regardless of wheelbase length.
• The petrol four-cylinder variants, covering both the 109 and 88 wheelbases from 1971-1985, hold 8.1 liters of coolant, a modest increase over the diesel figure that reflects differences in the petrol engine's cooling jacket volume.
• The Series III-6 109, produced from 1971-1979, carries the largest cooling system capacity in the range at 11.2 liters, consistent with the greater displacement and additional cylinder count of a straight-six engine requiring more coolant volume to manage heat across a longer block.
• The Series III-V8 109, covering 1979-1983, has a cooling system capacity of 9.7 liters, which sits between the four-cylinder and six-cylinder figures, a characteristic of the compact Rover V8's relatively efficient packaging despite its eight cylinders.
• All six configurations list normal road conditions as the applicable use condition, meaning the stated capacities apply to standard operating environments rather than severe-duty or off-road-specific service scenarios.
• Wheelbase length, whether 88 or 109 inches, does not affect coolant capacity in the four-cylinder petrol or diesel variants, as the cooling system is determined by the engine rather than the chassis length.