I'm sure I'm beating dead horse with this topic, just wanted you guys opinions on the subject. Almost all syn oils use a high calcium content vs magnesium. The exceptions are some of the Castrols & Mobil oils. A long time ago Mag was used heavily & the switch was made to calcium. Is it because it's a cheaper alternative? Here's some interesting reading I came across.
http://www.pqiamerica.com/magnesium.htm
http://www.pqiamerica.com/magnesium.htm
