Go Back   The Supercar Registry > General Discussion > Technical & Restoration


Reply
 
Thread Tools Display Modes
  #1  
Old 01-14-2022, 01:27 AM
2qwik2c 2qwik2c is offline
Yenko Contributing Member
 
Join Date: Jan 2005
Location: Manitoba, Canada
Posts: 479
Thanks: 3
Thanked 1 Time in 1 Post
Default NOS GM posi additive?

I have a box of NOS GM posi additive, is this the good earlier stuff with the whale oil in it?? 1970’s vintage?

Thanks
Attached Images
  
__________________
67 Biscayne 2DR L36 M40 G80 K05 F41 #'S
Reply With Quote
Attachments - The Supercar Registry 47B81822-D03F-44B3-95A0-F11B33AD51E1.jpg 34FF73D7-0FB9-44AE-958E-695AC7017B39.jpg
O Garage vBulletin Plugins by Drive Thru Online, Inc.
Click here to view all the pictures posted in this thread...
  #2  
Old 01-14-2022, 02:04 AM
LT1vette LT1vette is offline
Yenko Contributing Member
 
Join Date: Jan 2003
Location: Toronto, Ontario
Posts: 437
Thanks: 1,716
Thanked 364 Times in 166 Posts
Default

Check the box, may be a date code on it. The number looks too new to me, just a guess, to be the "good" oil...
Reply With Quote
  #3  
Old 01-15-2022, 07:04 PM
Mr.Nickey Nova Mr.Nickey Nova is offline
Senior Member
 
Join Date: Jan 2008
Location: Chicago Suburbs
Posts: 1,066
Thanks: 0
Thanked 134 Times in 114 Posts
Default

I have the same box of posi. additive i received from my neighbor who passed away a while back that was a Chevy mechanic. Can't find any date on the box. Wonder if the additives are still good, i would think they are??
Reply With Quote
  #4  
Old 01-15-2022, 10:32 PM
Big Block Bill Big Block Bill is online now
Yenko Contributing Member
 
Join Date: May 2004
Location: Elk Grove Village Illinois
Posts: 1,479
Thanks: 1,915
Thanked 689 Times in 288 Posts
Default

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 believe they should be just fine. I also had a neighbor give me a case of 20w50 Royal Purple Racing oil from cleaning out his Parent's garage in Berwyn Il 5 years ago (That was supposed to be 35 / 40 years old) and I sent a sample to a lab and had an oil analysis done on it. They said it was 100% okay and had not seen a concentration of Zinc like that in a long time. I say use it

Bill
Reply With Quote
  #5  
Old 01-16-2022, 12:09 AM
67since67's Avatar
67since67 67since67 is online now
Yenko Contributing Member
 
Join Date: Mar 2016
Location: Waterloo Iowa
Posts: 1,739
Thanks: 2,700
Thanked 3,933 Times in 949 Posts
Default

Quote:
Originally Posted by Big Block Bill View Post
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
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 11:47 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.