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    Author Topic: Article on Zinc in Motor Oil  (Read 1563 times)

    Offline cudabob496

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    Article on Zinc in Motor Oil
    « on: October 03, 2014 - 06:02:53 PM »
    http://blog.hemmings.com/index.php/2012/10/18/tech-101-zinc-in-oil-and-its-effects-on-older-engines/

    Also found this. Wonder if the Mobil 1 Synthetic I use has enough zinc. Or is the fact that I have
    a roller cam help me avoid problems?

    http://www.mobiloil.com/USA-English/MotorOil/Files/Mobil_1_Product_Guide.pdf
    « Last Edit: October 03, 2014 - 06:07:09 PM by cudabob496 »
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    72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

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    Offline sassygreen

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    Re: Article on Zinc in Motor Oil
    « Reply #1 on: October 03, 2014 - 07:27:37 PM »
    Thanks for the link. Good information for sure. I had a new cam go flat on me about 4 yrs ago in a 350 chevy. I am sure it was because of the new oil without the zinc. I paid $5.00 a quart for comp cams break in oil, on my new 440, flat tappet cam. If you have a roller cam, I am sure you will be ok with synthetic.
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    Offline cudabob496

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    Re: Article on Zinc in Motor Oil
    « Reply #2 on: October 03, 2014 - 07:32:29 PM »
    just noticed in the above chart that the Mobil 1 High Mileage has extra zinc.
    Logged
    72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

    1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

    2011 Kawasaki Z1000

    Offline 1970 RT Challenger 1970

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    Re: Article on Zinc in Motor Oil
    « Reply #3 on: October 03, 2014 - 09:32:08 PM »
    You want the 15W50 Synthetic Mobil 1 as it has a healthy dose of Zinc and Phosphorus for the older engines.
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    Offline wyckedtanker

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    Re: Article on Zinc in Motor Oil
    « Reply #4 on: October 03, 2014 - 10:25:50 PM »
    Quote from: 1970 RT Challenger 1970 on October 03, 2014 - 09:32:08 PM
    You want the 15W50 Synthetic Mobil 1 as it has a healthy dose of Zinc and Phosphorus for the older engines.

    nice to know since I am about to pull my 340 out soon
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    Offline cudabob496

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    Re: Article on Zinc in Motor Oil
    « Reply #5 on: October 03, 2014 - 10:48:15 PM »
    Quote from: wyckedtanker on October 03, 2014 - 10:25:50 PM
    nice to know since I am about to pull my 340 out soon

    think I would add some zinc, before running 50wt.
    Logged
    72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

    1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

    2011 Kawasaki Z1000

    Offline tommyg29

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    Re: Article on Zinc in Motor Oil
    « Reply #6 on: October 03, 2014 - 10:49:50 PM »
    I use high mileage Mobil 1 and add zinc additive anyways, just in case. The high mileage stuff is somehow supposed to help with worn valve guides.  :dunno:
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    72 Roadrunner 400-4 Auto-3.23 Gear-Black Cruiser
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