The price of Redline motorcycle oil 20w50 went from $14.50 to $21.58 per qt since my last order from Amazon in August 2017!
So I ordered 6 qts of Valvoline Vr1 20w50 conventional for $33.00 with free next day shipping instead. Why would the Redline price increase by 1/3 in just 2 years? Amsoil is $13.60 per qt from the Amsoil website.