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Registered
Join Date: Sep 2000
Location: Shreveport, La.
Posts: 1,710
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I burn nothing but Chevron Premium in my 83 too. But I do use a bottle of Techron just before oil changes just to keep it clean. I add it at 1/4 tank and fill it up. Drive that tank out and change the oil. CIS likes it clean.
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Robert Stoll
83 911 SC
83 944
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