Honda Odyssey, RL1 (USA / CAN)

Coolant capacity & service interval

Honda Odyssey, RL1 (USA / CAN) coolant capacity ranges from 6,6 liters to 9,4 liters. Service intervals include checks at 15000 miles or 12 months, and changes at 45000 miles or 36 months, 60000 miles or 60 months, and 120000 miles or 120 months. The data covers 10 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
Odyssey 3.5 V6 (CAN) (2003-2004)
  • Use: Normal
  • Capacity 9,4 liter (Overhaul capacity)
  • Capacity 7,5 liter (Service fill)
  • Check 15000 miles/ 12 months
  • Change 60000 miles/ 60 months
Odyssey 3.5 V6 (CAN) (2003-2004)
  • Use: Initial service
  • Capacity 9,4 liter (Overhaul capacity)
  • Capacity 7,5 liter (Service fill)
  • Check 15000 miles/ 12 months
  • Change 120000 miles/ 120 months
Odyssey 3.5 V6 (USA) (2003-2004)
  • Use: Normal
  • Capacity 9,4 liter (Overhaul capacity)
  • Capacity 7,5 liter (Service fill)
  • Check 15000 miles/ 12 months
  • Change 60000 miles/ 60 months
Odyssey 3.5 V6 (USA) (2003-2004)
  • Use: Initial service
  • Capacity 9,4 liter (Overhaul capacity)
  • Capacity 7,5 liter (Service fill)
  • Check 15000 miles/ 12 months
  • Change 120000 miles/ 120 months
Odyssey 3.5 V6 (CAN) (2001-2002)
  • Use: Normal
  • Capacity 9,4 liter (Overhaul capacity)
  • Capacity 7,5 liter (Service fill)
  • Check 15000 miles/ 12 months
  • Change 60000 miles/ 60 months
Odyssey 3.5 V6 (CAN) (2001-2002)
  • Use: Initial service
  • Capacity 9,4 liter (Overhaul capacity)
  • Capacity 7,5 liter (Service fill)
  • Check 15000 miles/ 12 months
  • Change 120000 miles/ 120 months
Odyssey 3.5 V6 (USA) (2001-2002)
  • Use: Normal
  • Capacity 9,4 liter (Overhaul capacity)
  • Capacity 7,5 liter (Service fill)
  • Check 15000 miles/ 12 months
  • Change 60000 miles/ 60 months
Odyssey 3.5 V6 (USA) (2001-2002)
  • Use: Initial service
  • Capacity 9,4 liter (Overhaul capacity)
  • Capacity 7,5 liter (Service fill)
  • Check 15000 miles/ 12 months
  • Change 120000 miles/ 120 months
Odyssey 3.5 V6 (CAN) (1999-2000)
  • Use: Normal
  • Capacity 8,5 liter (Overhaul capacity)
  • Capacity 6,6 liter (Service fill)
  • Check 15000 miles/ 12 months
  • Change 45000 miles/ 36 months
Odyssey 3.5 V6 (USA) (1999-2000)
  • Use: Normal
  • Capacity 8,5 liter (Overhaul capacity)
  • Capacity 6,6 liter (Service fill)
  • Check 15000 miles/ 12 months
  • Change 45000 miles/ 36 months

Additional Notes

  • The Honda Odyssey RL1 3.5 V6 cooling system lists two distinct capacity figures for each model year range: an overhaul capacity and a service fill capacity. The overhaul capacity represents the total volume of the entire cooling system when fully drained and refilled, including the engine block, heater core, and all passages. The service fill capacity is the smaller volume used during a routine coolant change, where some residual fluid remains in the system.
  • For the 1999-2000 model years, both the USA and CAN variants share identical cooling system capacities: 8.5 liters overhaul and 6.6 liters service fill. Starting with the 2001-2002 model years, both markets saw an increase to 9.4 liters overhaul and 7.5 liters service fill, a difference of 0.9 liters in each figure compared to the earlier generation.
  • The 9.4-liter overhaul capacity and 7.5-liter service fill figures introduced for 2001-2002 remain unchanged through the 2003-2004 model years, applying equally to both USA and CAN configurations.
  • The 1999-2000 model years carry a coolant change interval of 45,000 miles or 36 months under normal use conditions. Beginning with the 2001-2002 model years, the normal-use change interval extended significantly to 60,000 miles or 60 months, representing a longer service life expectation for the coolant.
  • For the 2001-2002 and 2003-2004 model years, an initial service condition is listed alongside the normal use condition. Under initial service, the coolant change interval is specified at 120,000 miles or 120 months, which is double the normal-use interval. In coolant service schedules, an initial service interval of this length typically applies to the factory-fill coolant, which may be a long-life formulation installed at the time of manufacture.
  • The coolant check interval of 15,000 miles or 12 months applies uniformly across all model years, all use conditions, and both the USA and CAN markets covered in these specifications. A check interval shorter than the change interval is standard practice, allowing for inspection of concentration, pH, and contamination without a full fluid exchange.
  • The USA and CAN market specifications are identical in every capacity and interval figure across all listed model year ranges. No market-specific variation exists in the coolant system data for the Honda Odyssey RL1 3.5 V6 between 1999-2004.

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