[DeTomaso] ZDDP zinc oil additive

Thu Mar 12 12:28:14 EDT 2009

As Asa stated you need to be VERY careful in your choice of oil for a 
flat tappet cammed engine.  The Mobil 1 chart showed an oil that had 
1200 ppm of ZDDP.  But I've seen other Mobil 1 charts, that show that 
level of ZDDP only for older mixes of oil, not for the stuff you can buy 
at the auto parts store.  Rotella and other diesel oils are not going to 
be sufficient and are already starting to reduce the ZDDP levels.

Your best bet is to go with a specialty oil and to carefully research it.

Paul

Ian H wrote:
> I  just checked the Mobil 1 web site an they say that their 15W50 (which is 
> what I use) has 1200 ppm of ZDDP.   Most others in their line have 800ppm, a 
> couple have 1000ppm.  Is 1200 enough?  I don't know  but it's better than 
> nothing, I guess.
> 
> Heres a chart of their product line The last line labled Phosphous content 
> is the ZDDP level. 
> http://www.mobiloil.com/USA-English/MotorOil/Files/Mobil_1_Product_Guide.pdf
> 
> Ian
> 
> 
> ----- Original Message ----- 
> From: <cengles at cox.net>
> To: "Asa Jay Laughton" <asajay at asajay.com>
> Cc: <detomaso at realbig.com>
> Sent: Thursday, March 12, 2009 7:39 AM
> Subject: Re: [DeTomaso] ZDDP zinc oil additive
> 
> 
>> Dear Asa,
>>
>> I am a bit confused. I understand that Mobil 1, VR-1 and Amsoil, etc, are 
>> trick, synthetic oils with many advantages over dino oil. My dumb question 
>> is if those advantages include synthetic compensation for the lack of 
>> ZDDP? My guess is that while they excel in most areas of oil function, the 
>> specific problem area that ZDDP addresses requires----specificaly ZDDP. 
>> Anybody know if the synthetics need no additives or if a little "snort" of 
>> ZDDP is beneficial in our flat tappet cam engines?
>>
>> Often confused, Chuck Engles
>>
>>
>>
>> ---- Asa Jay Laughton <asajay at asajay.com> wrote:
>>> But there are also alternatives out there, like Mobil 1, Valvoline VR-1,
>>> Amsoil. You just need to do the research, and there is a lot of it out
>>> there. I recently switched back to Amsoil and I'm loving it.
>>>
>>> :)
>>>
>>> Asa Jay
>>>
>>> Asa Jay Laughton, MSgt, USAFR, Retired
>>>
>>> &Shelley Marie
>>> Spokane, WA
>>>
>>> 1971 Mach I Mustang [ASA JAY]
>>> 1973 Pantera L 5533 [ASASCAT]
>>>
>>> ******************************
>>> http://www.asajay.com
>>> http://www.351c.info
>>>
>>>
>>>
>>>
>>> pantdino at aol.com wrote:
>>>> What you say is true-- any oil approved for a new car would be terrible 
>>>> for a flat-tappet engine.
>>>> But if you use a gas-diesel approved oil like Delo or Rotella will still 
>>>> be OK as of now.
>>>> That could change in the future if the government requires further 
>>>> reductions in those oils also.
>>>>
>>>> Jim Oddie
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: Robert Kirk <kirkbrit at yahoo.com>
>>>> To: detomaso at realbig.com
>>>> Sent: Wed, 11 Mar 2009 2:28 pm
>>>> Subject: [DeTomaso] ZDDP zinc oil additive
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> I?have recently become aware that current motor oils are profoundly 
>>>> lacking
>>>> enough zinc to adequately lubricate older engines.?
>>>> One of my MGC customers has had a major failure with his new Cam.?? I now 
>>>> learn
>>>> that lack of sufficient zinc (ZDDP) in the oil is probably a supporting 
>>>> if not
>>>> causation of the problem.? I now am now on board with what looks to be 
>>>> the best
>>>> solution on the market...."ZDD plus".??? Anyway I wanted to offer the 
>>>> group an
>>>> opportunity to purchase a small quantity (5 4oz bottles) at a 25% 
>>>> discount to
>>>> the retail price of $9.95/bottle.? That would be enough to do 5 oil 
>>>> changes.?
>>>> Moss gets $12/bottle with their dealer cost still over the MSR of $9.95
>>>> A brief run down of the problem:
>>>> http://www.macysgarage.com/myweb6/ZDDP.htm
>>>> ?
>>>> More information about the product I sell at:
>>>> http://www.zddplus.com/
>>>> ?
>>>> This is a real problem for pre catylitic cars with flat lifters.? I hope 
>>>> to have
>>>> much more posted to my web site very soon.? This product has 4 times as 
>>>> much as
>>>> the GM marketed brake in oil and is light years ahead of most any modern 
>>>> oil.?
>>>> There seems to be a lot of chest pounding and out and out untruths about 
>>>> several
>>>> modern oils but the bottom line is that if it is recommended for a new 
>>>> car it
>>>> doesn't have sufficient ZDDP....reason being zinc eats catylitic 
>>>> converters.?
>>>> ?
>>>> If interested please contact me directly off list.
>>>>
>>>>
>>>>
>>>> Regards,
>>>> Robert Kirk
>>>> www.kirks-auto.com
>>>> ?
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