NOS GM posi additive?

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**67since67** · #1 01-16-2022, 12:09 AM

Quote:

Originally Posted by Big Block Bill

They stopped using Whale oil in lubricants back in 1974 so if they do have Whale oil in them, they have to be before then. That's when we saw all the internal transmission oil coolers in radiators fail causing all the intermixing of Antifreeze and ATF and pink milk shakes and blown transmissions.

I was the trans tech in a Chev-Caddy dealership during that period, no fun cleaning that gook out of trans internals but very lucrative!! - Bill W

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