Why does redline have so much calcium?

[userfriendly]

Chevron 710 LS 20w40 has 3100 Ca, P 30 Zn 0

Caterpillar TO-4s have about Ca 3500, P1200 Zn 1300

 

[Triple_Se7en]

Dave who?

 

[userfriendly]

Nope. Who's on first.