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Zinc in motor oil
Posted: Thu Sep 11, 2008 8:18 pm
by dr deuce
Apparently, the motor oil manufacturers are/have been reducing the amount of zinc in motor oil in the latest revisions. This supposedly has a very bad affect on older engines cam shafts with solid lifters. It was identified previously by the antique farm tractor people.
There was an article in Hemmings Motor News about an additive that can be used. I will try to find it.
Posted: Wed Sep 17, 2008 1:03 pm
by dr deuce
www.zddplus.com You can read it for yourself
https://secure.mysuperpageshosting.com/ ... index1.htm
ZDDPlus™ RETAIL PRICING ( I have nothing to do with them)
#7176 - Single 4-ounce Bottle of ZDDPlus™ $9.95 plus $6 shipping
#7177 - Four-Pack of the 4-ounce Bottles of ZDDPlus™ $39.80 / four-pack plus $8 shipping
#7178 - Six-Pack of the 4-ounce Bottles of ZDDPlus™ $59.70 / six-pack plus $8 shipping
GAS ENGINES OIL SPECS
CATEGORY STATUS SPECIFICATIONS
SM Current For all current vehicle engines
SL Current For engines 2004 and older
SJ Current For engines 2001 and older
SH Discontinued For engines 1996 and older
SG Discontinued For engines 1993 and older
SF Discontinued For engines 1988 and older
SE Discontinued Not acceptable for gasoline-powered vehicles engines made after 1979