My notes on oil I have collected from several discussions on flat tappet oils with ZDDP ZINC:
Driven Racing oil GP1
Brad Penn
Lower API spec Shell RotellaT
Valvoline VR1
5W30 Joe Gibbs Driven LS30 Performance Motor Oil, Synthetic – 104,487 PSI
Zinc: 1610 ppm Phos: 1496 ppm Moly: 0 ppm Calcium: 3515 ppm TBN: 8.8
This oil has too much Zinc & Phos for use in catalytic converter equipped vehicles. It would work well for Race Cars, Street Hotrods and Classic cars. The bottle says it is formulated specifically for high output GM LS engines, and that no ZDDP or additives are required.
5W50 Motorcraft, API SN – 103,517 PSI
Zinc: 606 ppm Phos: 742 ppm Moly: 28 ppm Calcium: 1710 ppm TBN: 6.7
10W30 Valvoline VR1 Conventional Racing Oil (Silver Bottle) – 103,505 PSI
Zinc: 1472 ppm Phos: 1544 ppm Moly: 3 ppm Calcium: 2707 ppm TBN: 7.6
10W30 Valvoline VR1 Synthetic Racing Oil, API SL (Black Bottle) – 101,139 PSI
Zinc:1180 ppm Phos:1112 ppm Moly: 162 ppm Calcium: 2664 ppm TBN: 7.4
5W30 Chevron Supreme Conventional, API SN – 100,011 PSI
Zinc: 1018 ppm Phos: 728 ppm Moly: 161 ppm
10W30 Amsoil Dominator Racing Oil, Synthetic – 97,118 PSI
Zinc: 1613 ppm Phos: 1394 ppm Moly: 0 ppm
20W50 Castrol GTX, API SN, Conventional – 96,514 PSI
Zinc: 610 ppm Phos: 754 ppm Moly: 94 ppm
30 wt Red Line Race Oil – 96,470 PSI
Zinc: 2207 ppm Phos: 2052 ppm Moly: 1235 ppm
Not suitable for street use.
0W20 Mobil 1 Advanced Fuel Economy, API SN – 96,364 PSI
Zinc: 742 ppm Phos: 677 ppm Moly: 81 ppm
This is an earlier version of this oil that did not have Dexos 1 approval. See #90 below for the later version of this oil that does have Dexos 1 approval
10W30 Joe Gibbs XP3 NASCAR Racing Oil – 95,543 PSI
Zinc: 743 ppm Phos: 802 ppm Moly: 1125 ppm
Not suitable for street use.
10W30 Amsoil Z-Rod Oil – 95,360 PSI
Zinc: 1431 ppm Phos: 1441 ppm Moly: 52 ppm
5W30 Maxima RS530 Synthetic Racing Oil – 91,162 PSI
Zinc: 2162 ppm Phos: 2294 ppm Moly: 181 ppm
10W30 Quaker State Defy High Mileage, API SL, Semi-Synthetic – 90,226 PSI
Zinc: 1221 ppm Phos: 955 ppm Moly: 99 ppm
There is one other I need to call Craig at Speedstar who carries it.