Buick 2006 manual Recommended Fluids Lubricants, Underbody Flushing Service, Usage Fluid/Lubricant

Park on a fairly steep hill, with the vehicle facing downhill. Keeping your foot on the regular brake, set the parking brake.

•To check the parking brake’s holding ability: With the engine running and transaxle in NEUTRAL (N), slowly remove foot pressure from the regular brake pedal. Do this until the vehicle is held by the parking brake only.

•To check the PARK (P) mechanism’s holding ability: With the engine running, shift to PARK (P). Then release the parking brake followed by the regular brake.

Contact your GM Goodwrench® dealer if service is required.

Underbody Flushing Service

At least every spring, use plain water to flush any corrosive materials from the underbody. Take care to clean thoroughly any areas where mud and other debris can collect.

Recommended Fluids and

Lubricants

Fluids and lubricants identified below by name, part number, or specification may be obtained from your dealer.

Usage	Fluid/Lubricant
	Engine oil which meets GM
	Standard GM6094M and displays
	the American Petroleum Institute
	Certified for Gasoline Engines
Engine Oil	starburst symbol. GM Goodwrench®
	oil meets all the requirements for
	your vehicle. To determine the
	proper viscosity for your vehicle’s
	engine, see Engine Oil on
	page 5-15.
	50/50 mixture of clean, drinkable
Engine Coolant	water and use only DEX-COOL®
	Coolant. See Engine Coolant on
	page 5-24.
Hydraulic Brake	Delco® Supreme 11 Brake Fluid or
System	equivalent DOT-3 brake fluid.
Windshield	GM Optikleen® Washer Solvent.
Washer
Power Steering	GM Power Steering Fluid
	(GM Part No. U.S. 89021184, in
System	Canada 89021186).

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