[DeTomaso] Oil, re-hash

[adin at frontier.net]

thanks to all for the intersting comments.

It seems, then, that there are other wear surfaces to consider.  Do we  
need zinc for all those goodies????

Sounds like we will need this forever . . . .


David



Quoting Daniel C Jones <daniel.c.jones2 at gmail.com>:

> All other things constant, reduced ZDDP means increased wear rate of the
> cam lobes, lifer faces, distributor gear, etc.  Some of the oil companies
> claim their reformulated oil is just as good as before but I've not seen
> data that confirms that assertion.
>
> Dan Jones
>
> On Mon, Sep 8, 2008 at 1:39 PM, <cengles at cox.net> wrote:
>
>>
>> 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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