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Zddplus

Discussion in 'Early CJ5 and CJ6 Tech' started by bergy9, Aug 6, 2009.

  1. Aug 6, 2009
    bergy9

    bergy9 Jeep Maffia, CJ 5 Chapter

    Lincoln City, OR
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    I was wondering if anyone here has used ZDDPLUS oil additive. What there site states is that this product simply replaces the ZDDPLUS (Zinc Dialkyl-Dithio-Phosphate) that is necessary on non-roller engines. Or would a Rotella-T 15W-40 be better?
     
  2. Aug 6, 2009
    flyingyogi

    flyingyogi New Member

    Tucson
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    Mar 11, 2008
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    That's all I use...Rotella 15-40, works great in my motorcycle as well.
     
  3. Aug 6, 2009
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    I don't know anything about the additive you're referring to, but I do run Rotella in my Jeep, and it likes it.
     
  4. Aug 6, 2009
    Brian P

    Brian P Member

    Clarkdale Arizona
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    Mobil Delvac 1300 15W40 in mine, As Patrick mentioned.......My jeep likes it (-:

    There is also a small private outfit that offers a 15W40 with a very high ZDDP content, I have not tried it but a search for " Motorhead Motor Oil " should bring up his site.
     
  5. Aug 6, 2009
    oldtime

    oldtime oldtime

    St. Charles,...
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  6. Aug 7, 2009
    bergy9

    bergy9 Jeep Maffia, CJ 5 Chapter

    Lincoln City, OR
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    I as well had never heard of ZDDPLUS (they have a web site as well) either until I saw it in a old chevy book, and since I am now into rebuilding my motor due to a spun rod bearing, just thinking ahead when it will be back on the road. I am thinking of the Rotella-T my self because it's available. Thanks to all who replied
     
  7. Aug 7, 2009
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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  8. Aug 7, 2009
    unclebill

    unclebill Banned

    a sun blasted...
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  9. Aug 7, 2009
    Grinsha

    Grinsha minimally sufficient

    Montana
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    I have used that in 4 engines in the last couple months. It is a cam break in aditive.

    RSN
     
  10. Aug 9, 2009
    Hansh

    Hansh Going Mobile

    SE Wisconsin
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    Dec 7, 2004
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    Here is a link to a TSB from AMSOIL on their recommended products as they do not recommend adding anything to your oil.
     
  11. Aug 9, 2009
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    More specifically, they don't recommend adding anything to their oil..
     
  12. Feb 15, 2012
    curtcanada

    curtcanada L, L, and the POH!

    Western Slope, CO
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    Nov 25, 2008
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    I'm about to break in a freshly rebuilt 225 oddfire, and searched zddp on ecj5. I have been told that ZDDP is the stuff to get. From researching their website, it seems like they've done their homework. Of coarse, I've learned that the marketing community has been known to lie about product in their advertisements...I know...I was just as amazed to hear this as you are :rofl: Here's the link to their website http://www.zddplus.com/
     
    Last edited: Feb 19, 2012
  13. Feb 16, 2012
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
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    There is some talk on the TJ forums about zinc, specifically the lack of it, in many current formulations of oil. Something about Gov't mandates to remove it freom common motor oils, and the later versions of the 4.0L are not happy without it. I've read that many guys are running the Mobil 1 High Mileage oil, which is reported to contain the higher zinc.
    At 43K miles on my 4.0, I'm on my second crankcase full of Mobil 1, and my first running the high mileage formula.
     
  14. Feb 16, 2012
    jeepcj

    jeepcj Member

    cincy, Ohio
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    I just recently broke in a new cam on my engine. I did extensive research on oils for flat tappet cams, and rotella and valvoline racing oil seemed to be the top choices that I found.. I used the valvoline race oil, with the cam manufacturers breakin lube. Everything went smooth, Im using the race oil as a every day oil now, its expensive though
     
  15. Feb 19, 2012
    Diggerjeep

    Diggerjeep Member

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    I researched this subject a couple of years ago when I became aware of the need for zinc in the oil. I have four "antique" cars, 2 chevy small blocks, and 1 ford 289, plus the jeep. All have flat tappet cams.

    The background is that the zinc was removed from the oil to extend the life of the catalytic converter to 100,000 miles, so modern oils are made for modern cars with different mechanical design.

    The "vintage" engines used flat tappet cams. The lobes on the cams are tapered from front to back so that when the cam lobe passes the tappet, it causes the tappet to both lift and rotate in the chamber. The zync is essential in this process. Today's oils are "too slippery" and the tappet will lift, but not rotate, causing the cam lobe to wear. Have heard of cams wearing out in 1000 miles.

    I run Rislone in all of my engines. I have purchased ZDDP additive, or cam break in lube, but these come in containers which only contain a few ounces. The advantage of the Rislone is that it is in a quart bottle, so I use this instead of one of the quarts of oil at the oil change.

    There is a lot of information on the web on the muscle car forums.

    I just did a quick search and found a great writeup with pictures.

    http://www.mustangmonthly.com/techarticles/mump_0907_zddp_zinc_additive_engine_oil/viewall.html

    I believe it is worth the investment.
     
  16. Feb 19, 2012
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    "Vintage" may not be accurate. GM used flat tappets into the late 90's, and Jeep did through '06. This subject has been debated for years all over the place. I'd bet you couldn't find an automotive type internet forum that hasn't discussed it. The only thing as wide spread as the debates is the differing opinions on the matter.
     
  17. Feb 19, 2012
    1960willyscj5

    1960willyscj5 Well-Known Member

    Mesa, Arizona
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    Linky no worky 8(
     
  18. Feb 19, 2012
    SFaulken

    SFaulken Active Member

    Bellevue, WA
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    Far as I know, the Rover V8's are still flat tappet motors.... I'm sure there are others.
     
  19. Feb 19, 2012
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Could be. I started adding ZDDP Plus to my last Dauntless, I guess because it made me feel better. If you're on the fence about whether or not you should be using a zinc phosphate additive, read around on the internet for a while. Then you'll be even more un-sure.
     
  20. Feb 19, 2012
    SFaulken

    SFaulken Active Member

    Bellevue, WA
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    I'd add it to the current dauntless, but I'm sure it will be of limited use while it's busy pouring oil all over the shop floor.....
     
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