Every 5 years
Under the hood on the opposite side of the coolant.
You can purchase a coolant flush kit from your local auto parts store for less than $10. It comes with directions.
To flush the coolant on a 2001 Volvo XC, start by ensuring the engine is cool and then remove the coolant reservoir cap. Place a drain pan under the radiator and open the drain valve to allow the old coolant to flow out. After draining, close the valve and fill the system with a mixture of water and a suitable coolant flush product, then run the engine until it reaches operating temperature, allowing the flush to circulate. Finally, drain the flush solution, refill with fresh coolant, and bleed the system of any air.
You don't have to but it is a good opportunity to flush the system.
Toyota Long Life coolant. Pricey. Any brand name ethylene-glycol based coolant, mixed 50/50 would be OK.
The coolant capacity for a 2001 Toyota Sienna is approximately 9.0 quarts (or about 8.5 liters) when using the standard cooling system. This includes the radiator and engine block, but it's always a good idea to check the owner's manual for specific details and recommendations based on your vehicle's configuration.
*shrugs* come on why cant you figure that out "just ask your local 2001 Toyota sienna speaker dealer"
Clean the reservoir and flush the cooling system.
2001 Honda Odyssey, I just had this done and it cost $97.00 Hudson, MA
Should really flush your system every year to prevent any rusting or fouling, but at the very least every 2 years.
The 2001 Toyota Sienna has a V6 engine.
The 2001 Toyota Sienna has 24 valves.