Buick 1997 Riviera Owner's Manual download pdf (Page 295)

100

101

Underbody -Maintenance

Chemicals used for ice and snow removal and dust

control can collect on the underbody.

these

are

not

removed, accelerated corrosion (rust) can occur on

the underbody parts such as fuel lines, frame, floor

pan and exhaust system even though they have

.corrosion protection.

At least every spring, flush these materials from the

underbody with plain water. Clean any areas where mud

and other debris can collect.

Dirt

packed

closed areas

of the frame should be loosened before being flushed.

Your dealer or an underbody car washing system can do

this for you.

Chemical 'Paint Spotting

Some weather and atmospheric conditions can create a

chemical fallout. Airborne pollutants can fall upon and

attack painted surfaces on your vehicle.

This

damage can

take two forms: blotchy, ringlet-shaped discolorations,

and small irregular dark spots etched into the

paint surface.

Although no defect in the paint job causes this, Buick

will repair, at no charge to the owner, the surfaces of

new vehicles damaged by this fallout condition within

months or

12,000

miles

(20

000

km)

of purchase,

whichever occurs first.

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Buick 1997 Riviera Owner's Manual Page 295

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