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Highest Zinc Oils? #5428292 05/13/20 02:12 PM
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cknight49090 Offline OP
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What are some of the highest zinc oils readily available and economical? Dino's ? Blend's? & Syn's?Thanks!

Re: Highest Zinc Oils? [Re: cknight49090] #5428299 05/13/20 02:17 PM
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RDY4WAR Offline
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What's the application? I ask because you typically want to run the least amount of ZDDP needed for a given application. More is not always better.

As far as economical goes, Valvoline VR1 contains ~1400 ppm Zn and can be found for ~$7/qt (last I checked). Driven GP-1 contains ~1300 ppm Zn. There's the Lucas Hot Rod and Racing oils that contain 2000+ ppm Zn which is into corrosive territory.


"He who is without oil, shall throw the first rod." - Compressions 9:1
Re: Highest Zinc Oils? [Re: cknight49090] #5428307 05/13/20 02:29 PM
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2004tdigls Offline
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Originally Posted by cknight49090
What are some of the highest zinc oils readily available and economical? Dino's ? Blend's? & Syn's?Thanks!


even inexpensive NAPA CK HDEO has almost 1200ppm of zinc, that should be enough for most applications

http://pqiadata.org/NAPA_15W40.html

Re: Highest Zinc Oils? [Re: cknight49090] #5428310 05/13/20 02:33 PM
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cknight49090 Offline OP
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Not specific but I am just interested in readily available oils like WM not boutique oils.I was planning to use redline to boost it to 1200 ppm and use in flat tappet applications sbc. 5w30 10w30 and 10w40 maybe even some HDEO.

Last edited by cknight49090; 05/13/20 02:34 PM.
Re: Highest Zinc Oils? [Re: cknight49090] #5428313 05/13/20 02:35 PM
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Mr Nice Offline
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CK oils always have more zinc than CJ oils ?

Re: Highest Zinc Oils? [Re: cknight49090] #5428320 05/13/20 02:44 PM
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RDY4WAR Offline
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Originally Posted by cknight49090
Not specific but I am just interested in readily available oils like WM not boutique oils.I was planning to use redline to boost it to 1200 ppm and use in flat tappet applications sbc. 5w30 10w30 and 10w40 maybe even some HDEO.


If you're going to do that, just use Rotella T4 15w-40 in the SBC. You'll come out better than playing backyard chemist with a supplement.


"He who is without oil, shall throw the first rod." - Compressions 9:1
Re: Highest Zinc Oils? [Re: RDY4WAR] #5428323 05/13/20 02:47 PM
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2004tdigls Offline
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Originally Posted by RDY4WAR
Originally Posted by cknight49090
Not specific but I am just interested in readily available oils like WM not boutique oils.I was planning to use redline to boost it to 1200 ppm and use in flat tappet applications sbc. 5w30 10w30 and 10w40 maybe even some HDEO.


If you're going to do that, just use Rotella T4 15w-40 in the SBC. You'll come out better than playing backyard chemist with a supplement.



well said, a rotella 15w40 will work perfect and no guessing

Re: Highest Zinc Oils? [Re: 2004tdigls] #5428330 05/13/20 02:58 PM
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That would be fine for warmer weather and its dino so I could use for break in but I wouldn't want to run that in everything that's why I asked for blends and full syns as well.Thanks again.

Re: Highest Zinc Oils? [Re: cknight49090] #5428335 05/13/20 03:00 PM
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Milano Offline
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I had some t5 10w30 I had ordered... Probably two months ago, waiting for Amazon to ship ever since.. And I also ordered pennzoil hm 10w40...

The pennzoil was supposed to go in my 87 crown vic, and the t5 in my 64 buick wildcat.... But I did some reading about the diesel oils detergents just washing away the extra zddp...

So I switched which oil went in what and I'm very happy with the pennzoil in the Buick and the Rotella in the Ford. 🤷‍♂️ there's a little lifter tick in the Ford that I'm hoping clears out with the extra detergent in the Rotella, and the Buick sounds quieter and smoother than the 10w30 Valvoline VR1 that was in there..

I also keep making the mistake of thinking of my Buick as a low mileage vehicle. While I have less than 80000 miles on it, and it was rebuilt less than 20,000 miles ago, I have to remind myself that all those gaskets and seals are still 12 years old at this point and I probably should start using some of the high mileage oils.

I think I'll be fine. Motorcraft filter on Ford, wix on Buick..

The point I'm trying to make is I think you'd be fine with pretty much anything you mentioned. You might want to consider a Valvoline VR1 if you're looking for a particularly high zddp content.. Mobil 1 0w40 is supposed to have over 1000 of each as well.

Last edited by Milano; 05/13/20 03:06 PM.

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Re: Highest Zinc Oils? [Re: cknight49090] #5428440 05/13/20 05:18 PM
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SR5 Offline
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Here is a link to pair of Rotella T5 VOAs
A 15W40 and a 10W30, both with the modern CK-4 spec (zinc ~1200 ppm for the 15W40 and ~1100 ppm for the 10W30) they are semi-synthetic

https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/5346513/

This is a VOA of Rotella T6 CK-4 5w40 full synthetic at 1035 ppm Zn
https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/5253264/


---------------------------------------------------------------------------------
Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
Re: Highest Zinc Oils? [Re: SR5] #5428457 05/13/20 05:35 PM
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thanks all good info !

Re: Highest Zinc Oils? [Re: Milano] #5428498 05/13/20 06:33 PM
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Originally Posted by Milano
But I did some reading about the diesel oils detergents just washing away the extra zddp...


I'd like to hear more about the "washing away" of zddp in gasoline engines. I know several owners of old muscle cars using a HDEO motor oil who would like to hear more about this "washing away" phenomenon.


1987 Mercedes 300E 96,000 miles 15w-40 (Valvoline Premium Blue)
2012 Honda Odyssey 150,000 miles 0w-20 (Mobil 1)
Re: Highest Zinc Oils? [Re: cknight49090] #5428530 05/13/20 07:20 PM
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i have 2 '60s hi po cars, both with their original engines. Which is important for originality...
I have run Shell Rotella T 15w40, which used to be a good option. It is thought that the current blend is not as good as the stuff from years ago.

I believe you know the reason these engines need sufficient zinc is their flat tappet cams.
If you have stock springs and camshafts, Rotella or any good 10w30 should be fine.
If you are running more spring pressure, one of the newer oils specifically designed for these engines may be in order, but they are pricey.

Good luck.

Flat tappet cam oils

Last edited by JeffKeryk; 05/13/20 07:23 PM.

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Re: Highest Zinc Oils? [Re: cknight49090] #5428551 05/13/20 07:42 PM
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Originally Posted by cknight49090
That would be fine for warmer weather and its dino so I could use for break in but I wouldn't want to run that in everything that's why I asked for blends and full syns as well.Thanks again.

This statement is full of ignorant statements. It must be too much to ask if something could have been learned in better than a half decade as a member here.


make the inside of your engine oil cap white.
don't use.
Re: Highest Zinc Oils? [Re: cknight49090] #5428562 05/13/20 08:00 PM
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RDY4WAR Offline
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Originally Posted by cknight49090
That would be fine for warmer weather and its dino so I could use for break in but I wouldn't want to run that in everything that's why I asked for blends and full syns as well.Thanks again.


Don't use Rotella for break-in. Break-in oils are more about what they don't contain than what they do. Rotella (and all API oils) contain high amounts of detergents, friction modifiers, viscosity modifiers, and other additives that interfere with break-in. Break-in oils also contain more than double the amount of ZDDP that's in Rotella. It's also a more reactive type of ZDDP.

If you want a syn-blend with a good bit of ZDDP, Driven GP-1 is designed for older flat tappet cams. Rotella T6 5w-40 would be your shelf choice if you want a full synthetic.


"He who is without oil, shall throw the first rod." - Compressions 9:1
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