Buick RIVIERA 1993 Manual page 179

If you're going uphill on a one-way street and you're
parking on the left side, your wheels should point to the
right.
If there is no curb when you're parking uphill, turn the
wheels to the right.
If there is no curb when you're parking uphill on the left
side of a one-way street, your wheels should be turned
to the left.
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