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Old March 6th, 2013, 07:44 PM
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Corts60 Corts60 is offline
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Join Date: Jan 2013
Location: Portland
Truck: 1960 GMC Suburban
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Default Re: Newer Oils in Older Engines

I just use a zinc additive with standard oil. There is a cam break-in additive (cant remember the name right now) that is very rich in zinc and I just add a small bottle every oil change. I don't run diesel oil in my gas engines because it is usually more expensive, usually comes in gallons only, and viscosities are usually 40w or above.
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1960 GMC Suburban -305A (Soon to be 351E) & SM-420
(2nd Owner)
1978 Chevy Silverado - 350 DIESEL & T400 w/ overdrive (2nd Owner)

Suburban build thread on 67-72chevytrucks site:

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