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Adding engine coolant (also known as antifreeze) to your 2004 Buick Century is pretty easy. Engine coolant circulates through your engine to keep it cool in the summer but won't freeze in the winter. Make sure to check your engine when it is cold for an accurate reading. The video above shows you where the coolant reservoir in your Century is located and how to add coolant. Be sure to check your owners manual to determine the correct type of fluid to add - for Buicks, it will typically be in a section titled Fluid Capacities in the back of your manual. Mix the coolant with distilled water so that you have a combination of 50% coolant and 50% water. Some coolants will come premixed-that is, you don't need to add any water. These coolants will typically say 50/50 or pre-mixed on the front of the coolant bottle.
Removing the coolant reservoir cap on a warm engine could cause the cap to fly off at a high rate of speed and fluid to spray out of the reservoir. Always wear safety goggles when working on your Century. Promptly wipe up any spilled fluid as it is highly toxic. Animals love its sweet taste, so even a spilling a small amount on your garage floor can end up in the dog's stomach pretty quickly. If you notice an oily surface in your coolant, immediately have your mechanic inspect your Century for head gasket leakage
Coolant hoses wear out over time and need to be replaced - check 'em early and often2004 Buick Century Custom 3.1L V6
The best way to fix leaking hoses is to replace them, but if you don't have time, a stop leak product might work for you2004 Buick Century Custom 3.1L V6
If you are leaking oil and parking on your oil spots each night, the oil is breaking down your tires' rubber2004 Buick Century Custom 3.1L V6
Learn where your spare tire and jack are located before you need it on the side of the road2004 Buick Century Custom 3.1L V6
The burnt out tail light: classic reason for a cop to pull you over - change yours now2004 Buick Century Custom 3.1L V6
Leaking coolant is usually a sign that your water pump needs to be replaced. This video shows you how to quickly plug it2004 Buick Century Custom 3.1L V6