Valvoline VR-1 vs. Lucas Hot Rod oil

dartfreak75 said
Just Googled it rotella T has 1200 ppm zinc and the break in additive has 1400 so thats 2600

Be careful with your math. PPM is a concentration, which is not additive in your example. In other words, if you have an equal part solution of a 1200ppm oil and a 1400ppm oil, the final solution would have 1300ppm, not 2600.