any other ways to get ZDDP besides STP?

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GM Engine Oil Supplement. This stuff
will not thicken your oil. It will keep
your engine clean. I just put half a bottle
in my BMW thats in winter storage. The ZDDP
will coat the engine to reduce start up wear.
 
Yeah but ZDDP doesnt really work until the oil is quite hot right?

I would try 1/2 a bottle of Torco's MPZ additive. Now thats what I call a true suppliment. Check the VOA section.
 
The Valvoline Engine Protector (Red bottle, 15 oz) has enough ZDDP.

The Torco MPZ I would not recommend since we don't know how much concentration of each add are in it.

If we knew the exact amounts, then we could recommend treatment rates.

Too much of an FM or an AW additive can actually increase friction and wear.

STP ($1.49), or the Walmart branded equivalent ($0.74) is an oil thickener of copolymers and some ZDDP.

[ January 27, 2004, 03:31 PM: Message edited by: MolaKule ]
 
quote:

Originally posted by nthach:
IS there any other way to get ZDDP besides "racing" oils and STP/olefin additives?

Yeah, run a 5w-40/15w-40 HDEO...
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quote:

Originally posted by 2KBMW:
GM Engine Oil Supplement. This stuff
will not thicken your oil. It will keep
your engine clean. I just put half a bottle
in my BMW thats in winter storage. The ZDDP
will coat the engine to reduce start up wear.


do my local GM dealers stock this? what's the part number?
 
nthach. GM dealers should stock this product.
It's been around for years. In Canada it's now
called AC Delco Engine Oil Supplement. The part
number is 1#992869. It may be different in the
States. This stuff is designed to reduce valve
train noise,eliminate lifter sticking, reduce
engine and cam shaft wear. I figure if this product is used for new cam shafts, rebuilt
engines, it should protect any engine.
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Molakule,

What are usually the optimum concentrations of ZDDP in an oil, with no regard to API? ~1500ppm?

I wonder how much the MPZ stuff boosted the AW/FM levels in my oil. I should do a UOA... what do you guys think?
 
Leo,

By all means, post the UOA with the amounts of oil and add mixed.

The following statements are conditional:

IF the oil has no Moly OR Boron, AND you're not concerned with API limits, then the primary anti-wear addtive has to be Phosphorus-Zinc add at approx. 1600 ppm or about 0.17% of ZDDP like additives.

If MoDTC and or Borons and or high concentrated Calcium's are present, then 0.095% of ZDDP or like additive is sufficient. The moly, boron's, and calcium's are considered Secondary AW additives when the Phosphorus-Zinc levels are below 1000 ppm.

I should add that the Zinc Dithio phosphates also incorporate sulfur, so the ZDDP provides a set of elements and metal (Sulfur, Phosphorus, and zinc) in which all three act as a single AW and anti-oxidant molecule.

Addendum: You do not need ZDDP to get those three elements mentioned above. Sometimes we add the three components seperately to closely control each elements treatment rate.

[ January 28, 2004, 02:49 PM: Message edited by: MolaKule ]
 
You might try fishing through some of the MSDSs below. Zinc -- and the percentage of same -- is typically listed if present.

Alternatively you could buy some zinc sulfate pills from your local health food store, and drop a dozen of so through the filler cap. It won't reduce wear, but your engine will feel totally "healthy," with a nice boost to its immune system. Dropping a crab leg or two through the filler cap will also work (shellfish is high in zinc).
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http://householdproducts.nlm.nih.gov/cgi-bin/household/search?tbl=type&queryx=Oil+Additive

[ January 28, 2004, 06:47 PM: Message edited by: TC ]
 
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