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Zinc added to oil

 
Old 04-09-2019, 06:01 PM
  #21  
raylag64
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Shell Rotella T with ZDDP for flat tappet cams
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Old 04-09-2019, 06:59 PM
  #22  
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Originally Posted by Nowhere Man View Post
The whale oil is a old time GM tech slang term for the posi additive
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Old 04-09-2019, 07:08 PM
  #23  
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Originally Posted by 62cruiseer View Post
So, diesel oil, like Rotella, already has the zinc added or it's not needed? And, just run the same weight diesel oil as you would with other oil, 10-40 or 10-30? Sorry, learning something here.

Butch

Yes. This:

Originally Posted by GTOguy

The Rotella and similar diesel spec oils already have the higher ZDDP
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Old 04-09-2019, 07:10 PM
  #24  
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Originally Posted by MikeM View Post
my relative who worked as a tech in the 70's calls it whale sperm. the first time he told he asked for that while working on a rear I had to stop and double check that I herd that right and he laughed and told me.
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Old 04-09-2019, 07:29 PM
  #25  
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Originally Posted by Nowhere Man View Post
my relative who worked as a tech in the 70's calls it whale sperm. the first time he told he asked for that while working on a rear I had to stop and double check that I herd that right and he laughed and told me.
Sperm whale oil. When Sperm whales became protected, the formula had to change.

Last edited by MikeM; 04-09-2019 at 07:30 PM.
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Old 04-09-2019, 07:39 PM
  #26  
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I’ve been using Brad Penn 10-30 for years now, no issues. The green oil, for flat tappet cams.
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Old 04-09-2019, 09:09 PM
  #27  
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Originally Posted by MikeM View Post
Sperm whale oil. When Sperm whales became protected, the formula had to change.
Best I can do on this:

http://www.straightdope.com/columns/...ith-whale-oil/

A month or so ago a guy had a case of it for sale somewhere online; it wasn't all that expensive, as I remember. I guess if you have a lot of older cars like the gentleman I bought my '66 from, buying a case of whale oil makes sense if you wish to use it in those cars.

Cheers,

Richard
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Old 04-10-2019, 10:36 AM
  #28  
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Most of the internet engine oil conversations you read are full of myths, misinformation, and marketing hype. It you want FACTS and a logical way to make a decision, search for threads started by me, download and read the engine oil pdf. You might even consider giving a copy to your mechanic.

I think the name "whale sperm" was from the fact that the little four-ounce bottle was so expensive. Prior to the USA outlawing whale products in the 1970s the Positraction additive was some form of whale oil, but I'm not sure what species. There was also some in the old Type A Suffix A ATF.

So the industry had to develop a synthetic substitute, which is probably a good thing because oils from living things like whales and castor beans break down much more rapidly at operating temperatures than synthetics.

Duke

Last edited by SWCDuke; 04-10-2019 at 10:45 AM.
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Old 04-10-2019, 10:43 AM
  #29  
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Stop stepping over a dime to save a nickel just buy good oil that is designed for flat tappet cams
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Old 04-10-2019, 10:52 AM
  #30  
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I have been using Penn Grade 1, which is the old Kendall GT and Brad Penn oil. It's had several name changes but is still called the "original green oil". I have verified by calling the company. It has plenty of ZDDP and I've never had a problem. No additives needed.
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Old 04-10-2019, 10:58 AM
  #31  
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Originally Posted by ditchdigger650 View Post
Iíve been using Brad Penn 10-30 for years now, no issues. The green oil, for flat tappet cams.
My Ferrari buddy told me about Brad Penn oil I thought he was joking. I will have to research it
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Old 04-10-2019, 10:58 AM
  #32  
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this what I use for the last 5 years

Valvoline SAE 30 VR1 Racing Motor Oil
  • High zinc/phosphorus for anti-wear protection, including push-rod and flat tappet applications
  • Formulated to increase horsepower
  • Enhanced anti-foam system protects engine during extreme stress
  • Recommended for engines burning gasoline and full or partial alcohol fuels
  • For any product use or product technical questions call 1-800-TEAM-VAL
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Old 04-10-2019, 11:08 AM
  #33  
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The racing oil doesn't have the needed additive packages to combat corrosion in a street driven engine. Great for the track, where it's dumped after a day of racing, but not so great in the crankcase for 6 months in a street driven car.
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Old 04-10-2019, 01:56 PM
  #34  
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Originally Posted by GTOguy View Post
The racing oil doesn't have the needed additive packages to combat corrosion in a street driven engine. Great for the track, where it's dumped after a day of racing, but not so great in the crankcase for 6 months in a street driven car.
You don't want to run racing oil in a street engine. It's designed for a completely different environment.
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Old 04-10-2019, 02:01 PM
  #35  
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Originally Posted by jim lockwood View Post
You don't want to run racing oil in a street engine. It's designed for a completely different environment.
Lot's of owner's seem to think this is the way to go, unfortunately.
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Old 04-10-2019, 03:45 PM
  #36  
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Originally Posted by MikeM View Post
Lot's of owner's seem to think this is the way to go, unfortunately.
Yep. More is always better, and since a Corvette is a high performance car, racing oil must be just the ticket! Sadly, many owners of high performance cars feel this way. Oh well....it'll keep the parts houses and mechanics in business.
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Old 04-10-2019, 03:51 PM
  #37  
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I put racing oil in the same category as driving gloves. Nothing exudes coolness like gloves when you gas up at 7-11.
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Old 04-10-2019, 04:03 PM
  #38  
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Originally Posted by Frankie the Fink View Post
I put racing oil in the same category as driving gloves. Nothing exudes coolness like gloves when you gas up at 7-11.
I always wear my leather driving shoes when I go out in one of my 4 speed cars because their design makes it easier to do heel and toe downshifts. I doubt that anyone who sees them realizes how cool they actually are.
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Old 04-10-2019, 04:38 PM
  #39  
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Originally Posted by jim lockwood View Post
I always wear my leather driving shoes when I go out in one of my 4 speed cars because their design makes it easier to do heel and toe downshifts. I doubt that anyone who sees them realizes how cool they actually are.
Yeah. Flip-flops are really cool here in Florida too.

And gold chains.
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Old 04-10-2019, 04:41 PM
  #40  
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Color keyed socks to match your shorts.
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