How would you rate these oil (10w30)? 1-7...1 being the best and 7 being the worst. And explain why.... *List them 1-7*
-Valvoline SynPower
-Mobil 1
-Penzoil Platinum
-Castrol SYNTEC
-Valvoline Maxlife Full Synthetic
-Mobil 1 High Mileage Full Synthetic
-Valvoline DuraBlend
-Valvoline SynPower
-Mobil 1
-Penzoil Platinum
-Castrol SYNTEC
-Valvoline Maxlife Full Synthetic
-Mobil 1 High Mileage Full Synthetic
-Valvoline DuraBlend