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Old 12-14-2003 | 03:38 PM
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Diablo-RCU
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From: Hammond, IN
Default RE: Adding oil question

You don't add ANY castor oil.....because it's a YS.
They recommend only synthetic oil for their engines.
Castor gums up the regulator and piston ring.
If you must add oil, add about 4-5 oz of Klotz synthetic oil.