<VV> Specs on Quaker State "Defy" Motor Oil

[Mark Durham]

According to Richard Widman's oil articles, we need 1200-1400 ppm zinc
and 1000-1200 ppm phosphorus to match a good CI-4 oil. This comes very
close to those numbers and with the addition of a small amount of moly
and being a semi synthetic, probably is OK. Richard also states that
the Corvair engine was designed for oil viscosity of 9.3 to 12.5 cSt
and this oil is at the high end at 11.7. So for a in service broke in
engine it should work just fine, according to the published numbers.
Has anyone found a datasheet from the manufacturer on the oil? I
presume at the lower price we really have a higher refined Dino
product, as Richard discusses, which was better than I used back in the
60's where I ran a engine 220k miles on the same crank and cylinders.
The cam gear broke at 120k miles so new cam and lifters then, but I
never changed valves, guides, crank, pushrods, pistons rockers, et,
just honed the cylinders once, and new cast rings, and it did just fine
on the Dino oil (Havoline 10w40 most of its life). Mark Durham

Sent from my Windows Phone
From: Ken Maxwell
Sent: 7/11/2012 15:36
To: Virtual Vairs
Subject: <VV> Specs on Quaker State "Defy" Motor Oil
Hi Guys,

Here are some specs I found on a test of the Quaker State "Defy" oil 10W30.

Here are the results of the Lab Test, which was done by ALS Tribology
(formerly Staveley Labs) in Sparks, Nevada:

Quaker State 10W30 Defy, API SL synthetic blend (lab tested 2012)
NOTE: An API SL rating is for 2004 and older automotive engines. This rating
was replaced by the API SM rating at the end of November 2004, when the 2005
models were already available.

Silicon = 3 ppm (anti-foaming agent in new oil, but in used oil, certain
gasket materials and dirt can also add to this number)
Boron = 170 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 8 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2652 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2830 ppm
Zinc = 1221 ppm (anti-wear)
Phos = 955 ppm (anti-wear)
Moly = 99 ppm (anti-wear)
Total anti-wear = 2275 ppm
Potassium = 4 ppm (anti-freeze corrosion inhibitor)
Sodium = 0 ppm (anti-freeze corrosion inhibitor)
TBN = 6.5 (Total Base Number is an acid neutralizer to prevent corrosion.
Most gasoline engine motor oils start with TBN around 8 or 9. And in use,
this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.7 (cSt range for SAE 30 is 9.3 to 12.4) And
cSt (centistokes) in general terms, represents an oil's thickness

It looks like the zinc is 1221 which seems to be pretty good, especially for
the price! What do you guys think?

Ken Maxwell
Louisville, KY
69 Monza Convertible


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