The leather on my steering wheel has lost it's shining surface from wear, after only 137,000. All my other cars have kept there shine. What can I do to get the shine back short of buying a new wheel. I don't want to recover it as the cover is tight.

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Ricali

03 C240 4matic wagon
95 300E 234,000
7 prior 240;s 5 still going
81 300sd gone
65 230sl gone
49 Studebaker Champion
90BMW convert.167,000
60 Dodge D-100