Quote:
Originally Posted by bartell
I am not quoting, I am reading off test results we have had done. They match others in the industry. Can you share your own lab findings with us?
You seem to be unaware that the pre-2005 level of zddp was 1800 ppm. Your web reference indicates they have dropped substantially. Why not simply suggest that people google "zddp"?
You can twist what I write all you want..it is amusing to watch. It does not change facts.
Yes that is what am saying, (though I recall using the figure of 2500-3500 miles.) That is our findings and they match everyone else's in the industry. Can you post yours for us to examine or are you simply guessing?
Your chronic aggressivity indicates something deep is amiss. That is a great pity because your style of presentation obscures any expertise you may have. I sincerely suggest you seek help. Until then, you are best placed on an ignore list.
James
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I have posted the answers regarding Zinc before. This is why I get feed up with covering the same ground time and time again. and yes I get pissed with people that keep on raising the same old stuff that, after a long debate, has been dealt with already in this thread. I also get pissed with all these experts making generalised statements and never any supporting data to back them up. Then they expect you to supply the support information to back up the counter argument.
Well you stated that:
1) Zinc had been removed from oil.
2) Manufacturers were trying to hide the fact from motorists and do not provide the zinc levels of the oil.
Well your FACTS were proved to be bullshit with the one link I posted to the Mobil website. No wonder Elemental loves you because you both do the exact same thing.
If you read anywhere about the zinc, it is to protect the motor in the cases that there is direct metal to metal contact. In every case people will tell you that such metal to metal contact should not occur, as there is suppose to be oil there. But there are occassions when it can occur on cold start-ups, etc. Particularly on the cam where the lifters and scrapping the oil off the cam face. The level of Zinc in the oil (The PPM eg 1200) does not affect the protection from the occassional dry surface. It determines how long the protection will last.
This is where the debate about the level required in oil. That is, whether it is 800ppm, 1200ppm, or 1800ppm. Of course the higher the level the longer the protection will be, but how long is required for a situation that should not occur at all. When they dropped the levels, there were these people like Elemental and yourself that went around crying that the sky was falling and some people listened to them. So as a marketing requirement, some oil companies (like Mobil 1) increased the levels back up in some of their oils to shut up the doomsday proclaimers. But then people like Elemental recommend oils like Mobil 1 5W40 oil to to people when he should know that it has lower levels of zinc in it. So these sorts of actions show that it is really not as important as they try to make out. They also recommend diesel oils, like Rotella, because it supposedly has high zinc levels. Yet they don't even know that diesel oils are subject to basically the same legal constraints as other oils and they have had their zinc levels reduced also. What these experts profess to know and what is reality are two different things
So if people are worried about the zinc levels, just use the proper oil for the vehicle, eg Mobil 1 15w50 and it will have the extra zinc in it. Not that I have chosen my oil for the zinc levels, but it has 1220 ppm.
So yes I get pissed off when I get another chicken little yelling the sky is falling when it comes to zinc levels.
Now you can post your research that shows that 800ppm will make a rover V8 last any longer than a oil with 1800ppm. And I don't mean just another "expert" like yourselves that state it has an impact. Get proper research that proves it. Surely you have something more substantial that your gut feel, or someone else's gut feel when you post this stuff. You can't post and you won't.
