| Valvoline R1 Link No need to flame the messenger if you think this is crap. I have already purchased Redline oil for my own personal use. However, from what I've read, the only difference with this oil is that it has extra Zinc and can possibly cause premature degradation of 1994+ 3 way catalytic converters. *shrug* "Valvoline VR1 Racing Oil contains .13% of Zinc and .12% of Phosphorus compared to the Valvoline "Not Street Legal" Racing Oil which contains .14% of Zinc and .13% of Phosphorus."
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