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Old 09-17-2003, 03:58 PM
Duke2.6 Duke2.6 is offline
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Join Date: Mar 2003
Location: Southern California
Posts: 2,055
Virtually every OE I know of specifically recommend to NOT USE any supplemental engine oil additives. A proper additive package is included with all modern API certified oils.

The best advice for motor oil - API service category and viscosity is in your owners manual.

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