<VV> Quaker State "Defy" Oil

[Ken Maxwell]

Hi All,
 
At last night's Derby City Corvair Club meeting, a member brought in a jug
of Quaker State "Defy" motor oil. It say it has enhanced zinc. It is only
about $15 for five quarts at Wally World. Does anyone know if this would be
good enough for our Corvairs or must I continue to look for much more
expensive racing oils or Amsoil with high zinc?
 
Thanks!
 
Ken Maxwell
Louisville, KY 
69 Monza Convertible