Notice: If you use an improper coolant mixture, your engine could overheat and be badly damaged. The repair cost would not be covered by your warranty. Too much water in the mixture can freeze and crack the engine, radiator, heater core and other parts.

If you have to add coolant more than four times a year, have your dealer check your cooling system.

Notice: If you use extra inhibitors and/or additives in your vehicle’s cooling system, you could damage your vehicle. Use only the proper mixture of the engine coolant listed in this manual for

the cooling system. See Recommended Fluids and Lubricants on page 6-11for more information.

Checking Coolant

The coolant recovery tank is located on the driver’s side of the vehicle, above the engine air cleaner/filter. See Engine Compartment Overview on page 5-12for more information on location.

The vehicle must be on a level surface. When your engine is cold, the coolant level should be at the full cold mark, or a little higher. When your engine is warm, the level should be above the full cold mark or a little higher. The full cold mark is a line with an arrow pointing down at it, located on the front of the coolant recovery tank.

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Buick 2006 manual Checking Coolant