Lubripate Oil and Zinc

[bbscamp]

I contacted Lubriplate directly to ask them the scoop on thier oil and zinc.  Specifically, I asked them what oils they sell have fluid zinc additive;  In a past email they specifically recomend HDS 30  Motor Oil for breakin. 

Heres the response I got:

All those you mention contain zinc.

-----Original Message-----
From: xxxxxxxxxxxxxxxxxxxxxxxxxxx
Sent: Thursday, July 17, 2008 12:07 PM
To: lubeXpert
Subject: Re: Ask a Lubexpert

Can you please list for me the lubriplate motor oils that you have, that contain it?
does 3-4-5?   LoHiVis?   Super GPO?

[abodyjoe]

All those you mention contain zinc.

  nice reply..  the question is how much does it have.

[dangerdawg]

 

[bbscamp]

Talk to tech today

3-4-5  (5-30) has ~900 ppm fluid zinc.     GPO 1--30 has ~1300p ppm.    HDS30  (straight 30 weight) has ~900 ppm.   For summer weather, the tech said the HDS 30 is the best choice since there are no viscosity modifiers, making  straight weight have more "body".

He told me they sponsorede a nascar team years back and they used to qualify on the 5-30, just for reduced friction.  Race day they'd go straight weight.

[bbscamp]

from a HotRod mag. article:


Flat Tappet Cam Tech - Righting the Wrongs

You'll see this starburst symbol on the latest API ILSAC GF-4street-legal, energy-saving oils. It means they meet all the latestindustry oil specs, fully satisfy emissions requirements, and fulfillall the new car manufacturer warranty requirements. But it alsoindicates seriously reduced ZDDP content, which can cause problems withhigh-performance flat tappets.
If you are building up the engine from scratchand intend to run flat tappets, adjust your build specs and techniqueaccordingly. Don't excessively restrict oil to the lifter galleys, checkand maintain proper tappet-bore clearance, and consider grooving thelifter bores for increased lubrication (Comp has a special tool forthis). Where offered, use beehive springs in place of traditionalheavy-duty dual springs. "With the beehives, you get better control withless load," says Godbold. Above all, avoid no-name, brown-bag, offshorelifters like the plague. True, they're much less expensive, but you getwhat you pay for. We can say with reasonable confidence that all major cam companies arecurrently supplying quality lifters with their cams. For you GM guys,there's also the real GM or ACDelco solution.

When it comes time to fireup an engine with a new cam, do not skimp on proper break-in procedure.Put moly lube on the lobes during installation and pour a can ofbreak-in prelube into the oil pan in all cases. Any engine with morethan 300 pounds of open spring pressure or 170 pounds of seat pressure(as multiplied by the rocker ratio) should be run in on the outersprings only.

For in-service engines, consider running cam and lifterprelube in the oil all the time, not just during break-in. Anotheralternative is to use heavy-truck diesel-oil, which is formulated for18-wheelers and at present still has a full complement of traditionalantiwear additives that have been significantly reduced in today'sstreet-legal passenger car oils. (Though even diesel oils will startreducing zinc content in 2007 as big rigs gear up to receive catalyticconverters.) Comp Cams swears by Shell Rotella T diesel oil for use inhigh-performance street cars. It's available in both mineral-based andfull-synthetic formulations with both types containing basically thesame superior additive package. Rotella viscosities are generally higherthan today's modern formulations, but that's not a detriment for classicmusclecars. Diesel oils also add a superior detergent package that cankeep the piston rings cleaner for better oil consumption control. Thedrawback, if any, would be on a high-mileage engine where blow-by cancause detergent to accumulate in the combustion chamber, possiblycontributing to detonation.

Modern heavy-duty truck diesel oils with lots of ZDDP additives will bemarked "CI-4" or "CI-4 Plus." They also easily pass the API Service SLgasoline engine performance test (but due to the high ZDDP content, notthe SL chemical composition specs). Such truck oils are an economicaland effective solution for flat-tappet longevity, according to manysources.
Even better than diesel oil are speciallyformulated racing motor oils. Although the most expensive solution,these oils usually contain even more antiwear additives than dieseltruck oil, as well as other performance-enhancing ingredientsspecifically designed for hardcore, high-performance gasoline engineusage. According to Cosworth's Thomas Hayden, some diesel oils may nothave friction modifiers that he claims are helpful in preventing pistonscuff on high-performance gasoline engines, especially if running modernlow multiviscosity oils. But Dan Arcy, technical marketing manager forShell Lubricants, takes issue with the importance of friction modifiers,which he says "are only present in the very low viscosity GF-4 oils forfuel economy reasons."

At any rate, because they have a full load of antiwear additives,today's real racing motor oils are sometimes marked "for off-highway useonly" on the bottle. They definitely aren't embossed with theconsumer-friendly starburst insignia. Such racing oils won't meetmanufacturer's warranty requirements for new vehicles, may degradecatalytic converter performance in long-term use, and in some cases havenot been formally submitted to the oil industry's current benchmarkperformance test and validation procedure. But for older cars runningflat tappets, they are the best oils available.

If you make provisionsto adequately lubricate the lifter/lobe interface, use only qualitylifters, fill the sump with diesel or racing motor oils, and followproper break-in procedure, any flat-tappet cam failures should beminimized. It's a lot more effort than we've become accustomed to, butif you still want to run a high- performance flat-tappet cam, it'ssomething you'll just have to get used to doing.

[bbscamp]

According to my method of converting ppm to %  ((ppm / 1000000) x 100).   1300ppm = .13%,     900 ppm = .090%   

Check the chart on %s.    What do the additive packages actually add??   % wise or ppm??

[bbscamp]

a castrol "zddp" response I found:

Castrol is aware of articles in enthusiast magazines and web- sites, as
well
as after-market parts manufacturer discussions concerning GF-4 engine
oils
and cam-shaft durability issues in older performance vehicles. Some
consumers suspect the lower level of ZDDP in GF-4 oils may be causing
these
failures.  Castrol is currently investigating this issue.

If you wish not to use a GF-4 oil in your 1970 Cutlass, Castrol does
offer
the following products that contain Zinc at a level that is higher than
the
Zinc level found in oils (API SG) marketed during the "muscle car" era
of
time:
* Castrol GTX 20W-50 (SL,SM)
* Castrol GTX Diesel 15W-40 (CI4,CH4,CG4,CF4,CF,SL)
* Castrol GTX High Mileage 20W-50 (SL,SM)
* Castrol HD 30 (SL,SM)
* Castrol HD 40 (SL,SM)
* Castrol Syntec Blend Truck 15W-40 (CI4,CH4,CG4,CF4,CF,SL)(Semi-
synthetic)
* Castrol Tection Extra 15W-40 (CI4Plus, CI4,CH4,CG4,CF4,SL)
* Castrol Hypuron S 15W-40 (CI4Plus,CH4,CG4,SL)(Semi-synthetic)

Thank you again for your continuing patronage.

Castrol Consumer Relations


From and earlier thread: 
SH API oil rating 1996
zinc = 0.130%, 1130ppm (parts per million)
phosphorous = 0.120%, 1120ppm

SJ API oil rating 2001
SL API oil rating 2004
zinc = 0.110%, 1100ppm
phosphorous = 0.100%, 1000ppm

SM API oil rating 2005
zinc = 0.087%, 870ppm
phosphorous = 0.080%, 800ppm



I found that the API SG was 1300ppm (.13%) and SF was min. of 1500ppm (.15%)

[bbscamp]

All that being said?   I"m going to use an oil with a min. of .15% (API SF standard).   

[Winter]

The Castrol 4T motorcycle oil SAE 10w-40, API SH,SG  looks good to me,@ $3 , has more zinc than the conventional Castrol Racing oil /SM, the only thing better is the Castrol Synthetic racing oil for off road, @ $5 qt. and you will need a Moroso Racing oil filter#22470     for high volume/pressure pumps, to prevent failures.