[TR] ZDDP Levels in Various Oils

["Mack, Michael (Rochester)" <Michael.Mack@redcross.org>]

Info that I gleaned from various sources.  Gathered up into one list.

ZDDP Oil Levels

Desired range of ZDDP is 1200-1400. Levels over that is too corrosive, for
Racing engines Only.

Valvoline VR1 race oil has up to 1300 PPM
Castrol SYNTEC 20/50 full syn has 1200 PPM. Make sure label says "recommended
for classic cars"
Red Line Synthetic has 1300 PPM
Brad Penn Grade 1 racing oil is a mineral oil with 1500 PPM
Classic Car Motor Oil made by DA Lubricants to specs for the Indiana region of
the classic Car Club of America has 1500-1600 PPM
Swepco 306 20w-50  has 1400 ppm
Mobil 1  Full Synthetic 15W-50 Silver Cap @ 1200 ppm
Summit Racing oil has 1800 ppm.  Made by Spectro Oil for Summit

Mike Mack
80 TR8 FI DHC
73 Stag - w/Chevy 350
79 Spitfire
70 GT6+

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