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Old January 26th, 2022, 01:24 AM
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LEWISMATKIN LEWISMATKIN is offline
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Join Date: Jan 2013
Location: RIDGE MANOR, FLORIDA
Truck: 1965 1002 GMC V6-305E
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Default Re: 305 V-6 engine oil

The napa p/n for the 1 qt filter is 1121. And as long as you are happy with the brand of oil you like to use, just make sure the oil has plenty of zddp in it. Modern oils don't have enough to protect the camshaft & lifters.
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