Valvoline VR1 racing oil question
Ya. 800 -1100 seems to be the content level for the “high zinc” advertised products now.
US_VAL_VR1RACING_MO_EN.docx - SpringCM
They only have two kinds of “racing” (VR1) oil. Synth and non-synth
Motor oil now that have a ton of zinc (1200++) is tagged “for off road use only”. Least that’s what I seemed to notice when I was researching all this while back