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Old July 19th, 2020, 06:59 AM
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Ed Snyder Ed Snyder is offline
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Join Date: Jan 2013
Location: Medford, Oregon
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Default Re: What did you do for your GMC today?

Quote:
Originally Posted by Robert B. View Post
On a different note, in autozone today looking for a suitable 5W-30 for the ‘63, 305 V6. Realized practically all oils now are “fully synthetic” or “synthetic blend”. Curious what you guys are putting in your K1500’s out there these days?


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It seems like this question comes up about once a year. I've been using Amsoil products since 1974, and have always had good luck with them. Their Z-Rod oil has high zinc, and is available in 10W-30, 10W-40, and 20W-50. I use 10W-40 myself.

See https://www.amsoil.com/p/z-rod-10w-3...A#pills-home_0
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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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