[DeTomaso] Oil, re-hash

[cengles at cox.net]

Dear David,

My *comment* is that I think you're right. In a "mature", high mileage engine, there is not much practical benefit by struggling with ZDDP nutritional standards for old lifter-cam interface.

However, my suspicion is that truly knowledgeable minds know that there is *some* benefit.......which I am open to learning.

Warmest regards, Chuck Engles




---- adin at frontier.net wrote:
>thanks Asa.
>
>As I told Asa, i think that list was old info - but reasonbly
>accurate. I would look for the lastest/greatest reports. I have a
>stash of oil that I verified as ok and will use that up.
>
>Some comments on this theory, please? a flat tappet motor with lots
>of miles should be ok w/ new oils. (I'm thinking the cam/lifters would
>be well run in) TRUE OR FALSE????????
>
>thanks,
>
>
>Quoting Asa Jay Laughton <asajay at asajay.com>:
>
>>I did a few hours of searching and reading on the Internet yesterday.
>>Phosphorus is -not- the same as zinc, it's a different compound serving
>>a slightly different purpose, one that is usually coincidental with
>>zinc, but if the zinc is not listed as being in there, then I'm not
>>really interested.
>>
>>I read a -lot- about Mobile 1 yesterday and it was not good. However,
>>if they reformulated it recently, it may be different. I think from
>>everything I read yesterday, David Adin's list was pretty much tops, and
>>I discovered Amsoil has high concentrations of zinc in most their oils
>>as well. Since I'm an old Amsoil fan (who lost my way for several
>>years), I'll be going back now. :)
>>
>>Asa Jay
>>
>>Asa Jay Laughton, MSgt, USAFR, Retired
>>
>>&Shelley Marie
>>Spokane, WA
>>
>>1973 Pantera L 5533
>>[ASASCAT]
>>
>>******************************
>>http://www.asajay.com
>>http://www.351c.info
>>
>>
>>
>>
>>jefude at bellsouth.net wrote:
>>>Asa Jay,
>>>This topic has been making the rounds on every conceivable
>>>motor/car/.truck /motorcycle related forum for over a year.
>>>Opinions are widespread and have no general consensus.
>>>
>>>Check out this spec sheet link to Mobil 1. It was updated in 5/08.
>>>It clearly shows the phosphorus level which is also the ZDDP level
>>>. Correct guys ? Levels very from 800-1600. The 15-50 I run in
>>>#4134 is listed at 1200.
>>>
>>>http://www.mobiloil.com/USA-English/MotorOil/Files/Mobil_1_Product_Guide.pdf
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