Buick 1993 Skylark Owner's Manual page 217

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Doing Your Own Service Work
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CAUTION:
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You can be injured if you try to do service work
on a vehicle without knowing enough about it.
Be sure you have sufficient knowledge,
experience, and the proper replacement
parts and tools before you attempt any
vehicle maintenance task.
Be sure to use the proper nuts, bolts and
other fasteners. "English" and "metric"
fasteners can be easily confused. If you
use the wrong fasteners, parts can later
break or fall off. You could be hurt.