valvoline vr1 racing oil has zinc in it....should be available at your local parts store.
Valvoline VR1: Contains 75% higher zinc than SM motor oil with a balanced additive package designed to work in both racing and street-legal applications. This product will protect older style push-rod and flat tappet engines. Valvoline provides this product in both multi and mono viscosity grades: 20w50, straight 50, 10w30, straight 30, straight 40, and straight 60.
Last edited by 70AARcuda; 02/03/10 06:32 PM.