Found a spec sheet for Valvoline VR-1 Racing Oil.
For Zinc / Phosphorus it shows 0.130/0.120
Does not indicate units for these figures, like grams per liter.
Looked, but could not find same info for Rotella-T
May I ask the Zinc / Phosphorus content of BullTear AMC Oil ?
This oil thing is pretty agravating.
Rotella-T, STP, EOS, VR-1, BT AMC Oil ...... what to do ?