Re: 305 V-6 engine oil
Quote:
Originally Posted by LEWISMATKIN
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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Lewis is correct -- you definitely need to use a high ZDDP oil. That's why I like https://www.amsoil.com/p/z-rod-10w-4...motor-oil-zrd/.
Note that it says "High-zinc formula protects flat-tappet cams, lifters, rockers & other critical components".
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Ed Snyder
Medford, Oregon
1962 1000 Pickup 401M & Muncie 318 with overdrive
1962 K1000 Suburban 401M & SM420
1965 2500 Suburban 351C & SM420 with Watson overdrive
1967 CM1500 pickup 351E & NP435
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