Alberta Patriot
Member
Posts: 1438
Say What You mean Mean What You Say
Rockyview County, Alberta 2001 Interstate
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« on: November 10, 2018, 10:06:02 AM » |
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Been reading articles about adding ZDDP additive to older engines for extra protection, because of EPA mandated reduction of Zinc in modern oils to protect Cat Converters. Any harm in doing so??
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« Last Edit: November 10, 2018, 10:23:15 AM by 7th_son »
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Say what you mean, Mean what you say.
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Pete
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« Reply #1 on: November 10, 2018, 10:17:27 AM » |
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Harm? Not if you do not add to much.
It does make clean up on engine rebuild more of a job as it leaves a deposit on the inner surfaces.
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Alberta Patriot
Member
Posts: 1438
Say What You mean Mean What You Say
Rockyview County, Alberta 2001 Interstate
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« Reply #2 on: November 10, 2018, 10:27:36 AM » |
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Harm? Not if you do not add to much.
It does make clean up on engine rebuild more of a job as it leaves a deposit on the inner surfaces.
Think I'll be too old to ride by the time my engine needs a rebuild.  I am however concerned about added wear to the Transmission because of less Zinc in the oil. |
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Say what you mean, Mean what you say.
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Robert
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« Reply #3 on: November 10, 2018, 02:02:21 PM » |
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I am however concerned about added wear to the Transmission because of less Zinc in the oil.
You will probably be to old for the trans also, so I would not put in the zinc additive. There are other additives in the oil that will keep it good enough for the transmission. Not to mention the bikes were designed to run on dino oil so by the use of synthetics you already are ahead of the game. |
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“Some people see things that are and ask, Why? Some people dream of things that never were and ask, Why not? Some people have to go to work and don’t have time for all that.”
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98valk
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« Reply #4 on: November 10, 2018, 02:36:56 PM » |
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as mentioned too much causes all kinds of problems. some diesel oils are still maintaining enough phosphorus and zinc. see my post and check out http://pqiamerica.com/HDEO_Sample_Summary_Dec_2016.htmlas last tested NAPA and supertech are still high as are some others. |
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C 10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp
"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
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98valk
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« Reply #6 on: November 10, 2018, 03:45:14 PM » |
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I think u meant "Straight cut gears". what oil do u use? |
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C 10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp
"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
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¿spoom
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« Reply #9 on: November 11, 2018, 04:12:03 PM » |
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What does zinc do to the clutch plates? Just curious, I have no idea.
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Pete
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« Reply #10 on: November 11, 2018, 05:17:17 PM » |
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Zinc being an anti wear additive it attaches itself to metal and resist wear.
It does not add a slick surface like moly does I have never known it to affect clutch material.
It will coat the metal surfaces of the plates and retard wear as the plates (tips) move in the basket
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